Factors Associated With Mental Health Outcomes Among Health Care Workers Exposed to Coronavirus Disease 2019 — TEI-tagged view

Jianbo Lai, Simeng Ma, Ying Wang, Zhongxiang Cai, Jianbo Hu, Ning Wei, Jiang Wu, Hui Du, Tingting Chen, Ruiting Li, Huawei Tan, Lijun Kang, Lihua Yao, Manli Huang, Huafen Wang, Gaohua Wang, Zhongchun Liu, Shaohua Hu · 2020 · health-psychology · doi:10.1001/jamanetworkopen.2020.3976 · TEI xml · tagged edition · index · concepts · authors
Where this record's text came from. 2026-08-20 schema-0.3 pass: every quote verified as an exact substring of the staged text and anchored at merge time; concept terms verified present; every edge endpoint an existing node.
Other fields define these differently the same word, defined another way in another discipline
anxiety 5 fields · COVID-19 4 fields · depression 3 fields
Tags on this paper every tag the record carries, whether or not the words occur in the text below — a number is how many papers in the corpus carry that tag; a tag with no number is unique to this paper
frontline workers second-line workers nurses4 physicians depression11 anxiety12 insomnia distress2 PHQ-9 GAD-72 ISI2 IES-R COVID-1933 SARS Wuhan Hubei province tertiary hospital secondary hospitals multivariable logistic regression2 odds ratios3 confounders2 2-stage cluster sampling response bias4 comparator group longitudinal follow-up survey70
Method, as described: region-stratified 2-stage cluster sampling of 34 hospitals, four validated Chinese instruments (PHQ-9, GAD-7, ISI, IES-R), nonparametric group comparisons and multivariable logistic regression

Our tag layer for this paper

Cross-disciplinary analysis
content-tags & facets: phenomenon · claim-type · cross-domain-transfer · mechanism · claim-relation · replication-status · limitation — grounded in the full text
phenomenonpsychological burden in health care workers during an epidemic: 50.4% reported symptoms of depression, 44.6% anxiety, 34.0% insomnia and 71.5% distress— “A considerable proportion of participants had symptoms of depression (634 [50.4%]), anxiety (560 [44.6%]), insomnia (427 [34.0%]), and distress (899 [71.5%]).”
claim-typeexistence— “A considerable proportion of participants had symptoms of depression (634 [50.4%]), anxiety (560 [44.6%]), insomnia (427 [34.0%]), and distress (899 [71.5%]).”
method — evidence— “The study is a cross-sectional, hospital-based survey conducted via a region-stratified, 2-stage cluster sampling from January 29, 2020, to February 3, 2020. During this period, the total confirmed cases of COVID-19 exceeded 10 000 in China.”
object of study — evidence— “This cross-sectional, survey-based, region-stratified study collected demographic data and mental health measurements from 1257 health care workers in 34 hospitals from January 29, 2020, to February 3, 2020, in China.”
research question — evidence— “To assess the magnitude of mental health outcomes and associated factors among health care workers treating patients exposed to COVID-19 in China.”
contribution — evidence— “However, evidence-based evaluations and mental health interventions targeting front-line health care workers are relatively scarce.”
mechanismexposure intensity the authors' account of why frontline nurses fare worst - close, frequent contact and longer hours than usual, which is exposure to the hazard and exposure to the workload at once— “Frontline nurses treating patients with COVID-19 are likely exposed to the highest risk of infection because of their close, frequent contact with patients and working longer hours than usual.”mechanisms[0]
mechanismperceived personal danger human-to-human transmissibility and potential fatality are offered as intensifying the perception of personal danger - a belief about the disease rather than a dose of it— “The fact that COVID-19 is human-to-human transmissible,1, 3 associated with high morbidity, and potentially fatal16 may intensify the perception of personal danger.”mechanisms[1]
mechanismresource shortage predictable shortages of supplies together with rising case influx are named as contributors to pressure, separately from contact with patients— “Additionally, predictable shortages of supplies and an increasing influx of suspected and actual cases of COVID-19 contribute to the pressures and concerns of health care workers.17”mechanisms[2]
mechanisminexperience 71.5% of nurses held junior titles, which the authors read as fewer years of work experience - offered as why the most exposed group is also the least practised— “Moreover, 71.5% of all nurses had junior titles, indicating that most had fewer years of work experience.”mechanisms[3]
mechanismloss of control a list of distress sources taken from the SARS literature: vulnerability or loss of control, concern for self and family, changed work, isolation— “Sources of distress may include feelings of vulnerability or loss of control and concerns about health of self, spread of virus, health of family and others, changes in work, and being isolated.15”mechanisms[4]
builds-on the SARS-outbreak literature on health care workers (Maunder 2003, Bai 2004, Lee 2007, Chua 2004), which reported 89% with psychological symptoms in high-risk situations— “In a previous study during the acute SARS outbreak, 89% of health care workers who were in high-risk situations reported psychological symptoms.8”claim_relations[0]
confirms the SARS emergency-department finding that nurses developed more distress and more behavioural disengagement than physicians— “During the SARS outbreak, a study conducted among health care workers in emergency departments also showed that nurses were more likely to develop distress and use behavioral disengagement than physicians.15”claim_relations[1]
qualifies the national deployment of psychological assistance hotlines and counselling during the outbreak, which this paper says ran ahead of any evidence base for frontline workers— “Psychological assistance services, including telephone-, internet-, and application-based counseling or intervention, have been widely deployed by local and national mental health institutions in response to the COVID-19 outbreak. On February 2, 2020, the State Council of China announced that it was setting up nationwide psychological…claim_relations[2]
sensesymptoms of depression / anxiety / insomnia / distress, AS USED IN THE FOUR HEADLINE PREVALENCES - a count of everyone scoring above NORMAL on each scale, which is a far lower bar than the cutoff the same paper defines for detecting each disorder. Read this figure with the band boundaries tagged under definitions and with the two statistics rows that quote Table 2's own band counts; the number is right and the sense is milder than the words suggest— “A considerable proportion of participants had symptoms of depression (634 [50.4%]), anxiety (560 [44.6%]), insomnia (427 [34.0%]), and distress (899 [71.5%]).”senses[0]
sensesevere symptoms - A SECOND AND HIGHER THRESHOLD IN THE SAME PAPER: a score greater than 10, 7, 15 or 26. For distress that cutoff of 26 falls at the boundary of the moderate band, while the 71.5% headline counts from the mild band up. SO `distress' IN THIS PAPER NAMES TWO DIFFERENT POPULATIONS DEPENDING ON WHICH SENTENCE YOU READ, and both are correct— “The cutoff score for detecting symptoms of major depression, anxiety, insomnia, and distress were 10, 7,14 15, and 26, respectively. Participants who had scores greater than the cutoff threshold were characterized as having severe symptoms.”senses[1]
sensedistress - A SCORE ON THE IMPACT OF EVENT SCALE-REVISED, an instrument for the psychological impact of a specific event, not a clinical diagnosis and not general unhappiness. The same instrument carries the same sense in wang2020, where the label is `psychological impact` instead— “Accordingly, the 9-item Patient Health Questionnaire (PHQ-9; range, 0-27),10 the 7-item Generalized Anxiety Disorder (GAD-7) scale (range, 0-21),11 the 7-item Insomnia Severity Index (ISI; range, 0-28),12 and the 22-item Impact of Event Scale–Revised (IES-R; range, 0-88)13 were used to assess the severity of…senses[2]
sensefrontline - SELF-REPORTED AND BINARY. It is a yes/no answer to whether the respondent was directly engaged in diagnosing, treating or nursing patients with fever or confirmed COVID-19; it carries no measure of hours, caseload or duration of exposuresenses[3]
senserisk factor / associated with - AN ADJUSTED CROSS-SECTIONAL ODDS RATIO. Confounders are named and controlled, which is more than wang2020's univariate analysis does, but the design still observes no temporal order: nobody was measured before becoming frontline
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senses[4]
controlmultivariable logistic regression adjusting for sex, age, marital status, educational level, technical title, place of residence, working position and type of hospital — held
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— rules out the crude frontline-versus-second-line difference being an artefact of the front line's composition - sex, age, marital status, education, technical title, residence and hospital type are each held fixed, and those are the ones this quote names
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controls[0]
controlall tests two-tailed at a significance level fixed in the Statistical Analysis section — held
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— rules out a one-tailed test chosen after the direction of an effect was already visible
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controls[1]
controlnonparametric tests (Mann-Whitney U, Kruskal-Wallis) after checking that none of the four score distributions was normal — held
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— rules out a normality assumption the data do not meet - the authors report the check and then choose the test that does not need it
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controls[2]
controlfour previously validated Chinese-language instruments with published band boundaries and cutoffs, rather than questions written for this study — held
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— rules out instrument novelty as the source of the prevalence figures, and makes the numbers comparable with other studies using the same scales
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controls[3]
controloccupational and geographic data of the nonrespondents compared with those of respondents — partial
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— rules out nonresponse being concentrated in one occupation or one region - but NOT response bias itself, which the authors say may still exist because the two things it would turn on, stress and interest, are exactly what was not measured in the people who declined
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controls[4]
controltarget sample size set from a stated formula, a stated margin of error and a 35% prior from the SARS literature, then amplified by 50% for subgroup analysis — held
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— rules out the subgroup comparisons being underpowered by accident - the amplification is declared in advance and for that purpose
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controls[5]
controlreporting followed the AAPOR guideline for survey research — held
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— rules out selective reporting of how the survey was conducted - a reporting standard is named in advance, which fixes the disclosures rather than leaving them to the authors' choice after the fact
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controls[6]
controla comparator group of people living in the same regions who were not clinicians — absent-declared-unreported
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— rules out living in the region rather than working in it as a clinician - the paper says plainly there was no comparator group, so the two cannot be separated
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controls[7]
controlethics committee approval, verbal informed consent, the right to terminate at any time, anonymity and assured confidentiality — held
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— rules out responses given under professional pressure during an outbreak being treated as freely given, when the respondents are staff of the reporting institution's own hospitals
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controls[8]
notethe SARS emergency-department finding that nurses developed more distress and more behavioural disengagement than physicians — the paper's own word is 'also showed', which is agreement reported after the fact and not a replication attempt - 'confirms' rather than 'replicates' for that reason
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claim_relations[1]
auditfrontline workers —causes→ insomnia — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span reports frontline work as an independent risk factor (odds ratio); an observational association typed as cause.
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concept_edges[0]
effect directionfrontline workers —causes→ insomnia — increases
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concept_edges[0]
notefrontline workers —causes→ insomnia — the paper's word is 'independent risk factor', which is an adjusted cross-sectional association and not a demonstrated cause; the weight is below 1.0 for that reason and the largest of the four odds ratios is this one
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concept_edges[0]
weightfrontline workers —causes→ insomnia — 0.85
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concept_edges[0]
auditfrontline workers —causes→ depression — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span reports frontline work as an independent risk factor (odds ratio); an observational association typed as cause.
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concept_edges[1]
effect directionfrontline workers —causes→ depression — increases
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concept_edges[1]
notefrontline workers —causes→ depression — adjusted association, CI lower bound 1.11 - the weakest of the four and the closest to no effect
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concept_edges[1]
weightfrontline workers —causes→ depression — 0.8
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concept_edges[1]
auditfrontline workers —causes→ anxiety — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span reports frontline work as an independent risk factor (odds ratio); an observational association typed as cause.
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concept_edges[2]
effect directionfrontline workers —causes→ anxiety — increases
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Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concept_edges[2]
weightfrontline workers —causes→ anxiety — 0.8
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concept_edges[2]
auditfrontline workers —causes→ distress — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span reports frontline work as an independent risk factor (odds ratio); an observational association typed as cause.
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concept_edges[3]
effect directionfrontline workers —causes→ distress — increases
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Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concept_edges[3]
weightfrontline workers —causes→ distress — 0.8
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concept_edges[3]
edgedepression —operationalised-as→ PHQ-9
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concept_edges[4]
edgeanxiety —operationalised-as→ GAD-7
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concept_edges[5]
edgeinsomnia —operationalised-as→ ISI
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concept_edges[6]
notedistress —operationalised-as→ IES-R — the IES-R measures the psychological impact of a named event; 'distress' in this paper means nothing wider than that
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concept_edges[7]
notefrontline workers —distinct-from→ second-line workers — the distinction is the paper's independent variable and it is a self-reported yes/no
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concept_edges[8]
auditnurses —contrasted-with→ physicians — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but attributed: the span reports a SARS-outbreak study's finding about nurses and physicians.
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concept_edges[9]
weightnurses —contrasted-with→ physicians — 0.95
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concept_edges[9]
weightsecondary hospitals —contrasted-with→ tertiary hospital — 0.95
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concept_edges[10]
auditWuhan —part-of→ Hubei province — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span compares working outside Hubei with working in Wuhan; part-of rests on world knowledge, not the span.
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concept_edges[11]
noteWuhan —part-of→ Hubei province — and the paper's three strata are Wuhan, Hubei outside Wuhan, and outside Hubei, so the containment matters to how the comparison reads
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concept_edges[11]
outcomecontrol — held
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controls[0]
outcomecontrol — held
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controls[1]
outcomecontrol — held
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controls[2]
outcomecontrol — held
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
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controls[3]
outcomecontrol — partial
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controls[4]
outcomecontrol — held
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controls[5]
outcomecontrol — held
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controls[6]
outcomecontrol — absent-declared-unreported
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controls[7]
outcomecontrol — held
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controls[8]
limitationlimited in scope - 81.2% of participants were from Hubei province, so the findings do not generalise to less affected regions
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limitations[0]
limitationsix days of collection and no longitudinal follow-up, so nothing here speaks to how the symptoms developed or resolved; the authors expect they worsened
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limitations[1]
limitationNO COMPARATOR GROUP. The study cannot separate being a clinician in the region from living in the region, and cannot separate preexisting symptoms from new ones
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limitations[2]
limitationresponse bias may remain at a 68.7% response rate, in either direction - the nonrespondents may have been too stressed to answer or not stressed enough to care
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limitations[3]
limitationthe headline prevalences and the stated detection cutoffs are two different thresholds and the paper does not reconcile them in the abstract, where only the lower one appears
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limitations[4]
Content tags
content-observations: finding · quantity · variable · definition · key-term — grounded in the full text
finding50.4% reported symptoms of depression, 44.6% anxiety, 34.0% insomnia, 71.5% distress
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content_tags.findings[0]
findingfrontline work was an independent risk factor for all four outcomes after adjustment; insomnia carried much the largest odds ratio at 2.97
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content_tags.findings[1]
findingbeing a woman and holding an intermediate professional title were associated with severe depression, anxiety and distress
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content_tags.findings[2]
findingWorking outside Hubei was associated with a lower risk of distress than working in Wuhan.
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content_tags.findings[3]
findingsecondary-hospital staff reported more severe depression and anxiety than tertiary-hospital staff
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content_tags.findings[4]
findingbut frontline workers in secondary and tertiary hospitals scored equally high on all four scales - the hospital-type difference disappears at the front line
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content_tags.findings[5]
findingnurses, women, frontline workers and those in Wuhan reported more severe symptoms on every measurement
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content_tags.findings[6]
quantity1257 of 1830 contacted individuals completed the survey, a participation rate of 68.7%
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content_tags.quantities[0]
quantity1257 health care workers in 34 hospitals, over six days from 29 January to 3 February 2020
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content_tags.quantities[1]
quantity20 hospitals in Wuhan, 7 elsewhere in Hubei, 7 in other provinces - 34 in total
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content_tags.quantities[2]
quantitymedian scores: PHQ-9 5.0, GAD-7 4.0, ISI 5.0, IES-R 20.0
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content_tags.quantities[3]
quantitytarget sample of at least 1070 completed questionnaires, from a 35% prior and a 50% amplification for subgroups
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content_tags.quantities[4]
definitionfrontline workers
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.definitions[0]
definitioncutoff score
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content_tags.definitions[2]
Concepts
terms this paper carries, each with the sentence it was cut from — the layer that joins one paper to another. Terms with no quote yet are on CONCEPTS.html.
conceptfrontline workers
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[0]
conceptsecond-line workers
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concepts[1]
conceptnurses
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concepts[2]
conceptphysicians
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[3]
conceptdepression
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[4]
conceptanxiety
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[5]
conceptinsomnia
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[6]
conceptdistress
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[7]
conceptPHQ-9
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[8]
conceptGAD-7
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[9]
conceptISI
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[10]
conceptIES-R
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[11]
conceptCOVID-19
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[12]
conceptSARS
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[13]
conceptWuhan
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[14]
conceptHubei province
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[15]
concepttertiary hospital
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[16]
conceptsecondary hospitals
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[17]
conceptmultivariable logistic regression
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[18]
conceptodds ratios
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[19]
conceptconfounders
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[20]
concept2-stage cluster sampling
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[21]
conceptresponse bias
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[22]
conceptcomparator group
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[23]
conceptlongitudinal follow-up
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concepts[24]
Statistics — cross-field join keys
field-invariant statistical terms, used in their statistical sense (gated on a number / symbol / test). A p-value or a standard deviation means the SAME thing in physics, biology, psychology and sociology — so these are the strongest cross-field join keys. Grounded verbatim.
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.statistics[0]
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.statistics[1]
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.statistics[2]
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.statistics[3]
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.statistics[4]
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.statistics[5]
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.statistics[6]

When we have changed our mind. Some entries in the table begin with a word in capitals and the reason for it. EVIDENCE CORRECTED — the finding still stands, but we had quoted the wrong sentence from the paper, and the quotation has been replaced with the right one. RETRACTED — the entry itself was wrong; it stays on the page, marked, with the reason, rather than being deleted. WITHDRAWN AND REPLACED — the entry was wrong, and a corrected version of it appears in the entries below. Each mark carries its own reason, in brackets, because the reasons differ from one entry to the next. An entry we have WITHDRAWN is removed from this page and kept in the record, with its reason. A line reading Audit and a date is a later re-reading of the entry against its whole sentence: DOUBTFUL means it was kept, and the reason says what is loose about it. Quotation marks inside the tagger's sentence. Where a tag is the tagger's own sentence, a phrase in quotation marks inside it is borrowed from the paper — the tagger's wording around it is not. The paper's own sentence is the evidence quote for that row; on this page it is withheld with the article, and the article is at its publisher. Nothing inside quotation marks anywhere on this page is ours: if it is quoted, it is the paper's. Whose words a concept carries. A concept entry records a term the paper itself uses, so the term, the sense given for it, and its evidence are the paper's own words, quoted where the paper fixes them. This is the opposite of a sense entry in the tag table, which is the tagger's sentence about how the paper uses a term. Where a concept entry could not be grounded in the paper's words, the entry says so on its own row.

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