Table 2.

Predictors of insomnia

Characteristic	B	SE	Wald	OR	95% CI
Living in a high-risk area
Yes	0.082	0.14	0.357	1.09	0.83, 1.42
No				1	Ref
Older parturient women
Yes	− 0.019	0.18	0.012	0.98	0.69, 1.39
No				1	Ref
Disease history
Yes	0.232	0.15	2.549	1.26	0.95, 1.68
No				1	Ref
Minority
Yes	0.338	0.28	1.465	1.40	0.81, 2.43
No				1	Ref
Educational level
High school or below			0.375	1	Ref
Junior college and university	0.094	0.17	0.312	1.10	0.79, 1.53
Master’s degree or above	0.137	0.26	0.279	1.15	0.69, 1.91
Annual household income
Less than 80,000 CNY			2.581	1	Ref
80,000 CNY to 300,000 CNY	− 0.074	0.14	0.269	0.93	0.70, 1.23
300,000 CNY to 1 million CNY	0.235	0.22	1.172	1.27	0.83, 1.93
More than 1 million CNY	0.327	0.86	0.144	1.39	0.26, 7.54
Outbreak caused economic losses
Yes	0.038	0.15	0.064	1.04	0.78, 1.39
No				1	Ref
Pregnancy stage
First trimester			9.484	1	Ref
Second trimester	0.573	0.20	8.329	1.77**	1.20, 2.10
Third trimester	1.055	0.73	2.1	2.87	0.69, 11.98
Puerperium	1.048	0.67	2.462	2.85	0.77, 10.57
Perinatal period
Yes	− 0.011	0.71	0	1.00	0.25, 3.97
No				1	Ref
Depression
Non-depression			102.574	1	Ref
Mild depression	1.283	0.15	70.869	3.61***	2.68, 4.87
Moderate depression	1.973	0.23	73.218	7.20***	4.58, 11.31
Moderate major depression	2.123	0.35	37.185	8.36***	4.22, 16.53
Major depression	2.332	0.64	13.139	10.30***	2.92, 36.32
Anxiety
Non-anxiety			32.033	1	Ref
Mild anxiety	0.635	0.17	14.21	1.89***	1.36, 2.63
Moderate anxiety	1.098	0.20	30.319	3.00***	2.03, 4.43
Moderate major anxiety	1.204	0.35	12.109	3.34**	1.69, 6.57
Major anxiety	1.467	0.58	6.323	4.33*	1.38, 13.59

OR odds ratio, CI confidence interval, Ref reference group

***p < 0.001. **p < 0.01. *p < 0.05