Evidence map›Paper›PMID 41764466›Full record

ArticleBMC nursing2026

Factors influencing insomnia among nurses in Wuhan, China, two years after the COVID-19 outbreak: a cross-sectional study.

Li Wen, Zhiying Wan, Fangli Li, Yunyan XianYu

Abstract read
In one paragraph

Article in BMC nursing, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Li WenDepartment of Nursing, Renmin Hospital of Wuhan University, Wuhan, China.
Zhiying WanDepartment of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China.
Fangli LiDepartment of Otolaryngology, Renmin Hospital of Wuhan University, Wuhan, China.
Yunyan XianYuDepartment of Nursing, Renmin Hospital of Wuhan University, Wuhan, China. rm001907@whu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFrontline nurses at designated hospitals endured psychological distress and sleep problems during the COVID-19 pandemic. However, the long-term effects have not yet been thoroughly investigated. This study examines their sleep status and related factors two years later to inform staffing and mental health support.

methodsA cross-sectional study was conducted at a large tertiary COVID-19-designated hospital in Wuhan, China, in 2022. Using convenience sampling, we recruited 552 clinical nurses. Participants completed the Insomnia Severity Index (ISI), Perceived Stress Scale (PSS), and Maslach Burnout Inventory-Human Services Survey (MBI-HSS). Quantile regression was used to evaluate the relationship between variables and insomnia. The findings were interpreted through the lens of the 3P model of insomnia in this cohort.

resultsThe median ISI-7 score was 5.00 (7.00), and 6.88% of nurses had moderate-to-severe insomnia. According to the quantile regression results, female gender, the nucleic acid testing site and self-reported COVID-19-related posttraumatic stress symptoms, which were interpreted as predisposing factors, were associated with insomnia at the 10th and 10th-50th quantiles, respectively. Average weekly working hours (> 60 h and 41-60 h) attributed to precipitating factors were associated with insomnia at the 10th and 75th quantiles. Emotional exhaustion and perceived stress were associated with insomnia across all quantiles, while personal accomplishment was associated with it at the 75th quantile, aligning with the model’s perpetuating factors.

conclusionsInsomnia remains a health concern among nurses two years after the outbreak. The 3P model associates insomnia with vulnerabilities, traumatic exposure, and ongoing occupational stress. Multi-level, theory-based interventions should target these factors to support nurses’ well-being and reinforce healthcare system resilience. CLINICAL TRIAL NUMBER: Not applicable.

Indexed as

BurnoutCOVID-19InsomniaNursesPerceived stress

Identifiers

PMID41764466
PMCPMC13059505

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.