Table 5 Logistic regression of variables associated with insomnia

Outpatients [variance inflation factor (VIF) = 1.043–1.196, χ² = 17.373 (p = 0.015)]

Age (years)

1.011

0.979–1.043

0.518

Gender

 Male

1.284

0.684–2.409

0.436

 Female

Reference

Education

 Senior high or below

0.953

0.394–2.308

0.916

 College or above

Reference

Resilience

0.819

0.725–0.926

0.001

Trust of information

0.978

0.898–1.064

0.601

Fear of COVID-19

1.033

0.985–1.084

0.181

Suicidal thoughts severity

1.562

0.649–3.759

0.320

Healthcare workers [VIF = 1.034–1.117, χ² = 72.273 (p < 0.001)]

Age (years)

0.998

0.974–1.023

0.891

Gender

 Male

0.809

0.381–1.719

0.582

 Female

Reference

Education

 Senior high or below

1.198

0.423–3.394

0.734

 College or above

Reference

Resilience

0.803

0.728–0.887

< 0.001

Trust of information

0.981

0.925–1.042

0.535

Fear of COVID-19

1.102

1.062–1.144

< 0.001

Suicidal thoughts severity

2.024

1.067–3.838

0.031

General population [VIF = 1.032–1.095, χ² = 183.248 (p < 0.001)]

Age (years)

1.011

0.997–1.025

0.111

Gender

 Male

0.886

0.687–1.142

0.349

 Female

Reference

Education

 Senior high or below

0.862

0.639–1.163

0.331

 College or above

Reference

Resilience

0.829

0.785–0.875

< 0.001

Trust of information

1

0.961–1.042

0.982

Fear of COVID-19

1.079

1.053–1.106

< 0.001

Suicidal thoughts severity

3.455

2.338–5.106

< 0.001