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Retrospective Study
Copyright: ©Author(s) 2026.
World J Psychiatry. Aug 19, 2026; 16(8): 120395
Published online Aug 19, 2026. doi: 10.5498/wjp.120395
Table 1 Comparison of baseline data between two groups, mean ± SD/n (%)
Baseline data
Control group (n = 100)
Observation group (n = 100)
t/χ2 value
P value
Age (years)26.85 ± 1.6526.94 ± 1.720.3780.706
Pre-pregnancy body mass index (kg/m2)22.17 ± 2.1922.31 ± 2.280.4430.658
Ethnicity0.1770.675
Han Chinese86 (86.00)88 (88.00)
Ethnic minority14 (14.00)12 (12.00)
Educational level0.1260.939
Junior high school and below21 (21.00)23 (23.00)
Technical secondary school/high school60 (60.00)59 (59.00)
College degree or above19 (19.00)18 (18.00)
Place of residence0.2120.645
Town/city68 (68.00)71 (71.00)
Rural area32 (32.00)29 (29.00)
Monthly family income (Chinese yuan)0.9770.614
< 500025 (25.00)24 (24.00)
5000-800068 (68.00)65 (65.00)
> 80007 (7.00)11 (11.00)
Abnormalities found during pre-pregnancy examination0.9070.341
Yes14 (14.00)19 (19.00)
No86 (86.00)81 (81.00)
Early pregnancy work status2.7340.255
Resting at home23 (23.00)21 (21.00)
Work reduction44 (44.00)55 (55.00)
Normal operation33 (33.00)24 (24.00)


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