Case Control Study
Copyright ©The Author(s) 2021.
World J Clin Cases. Sep 26, 2021; 9(27): 8008-8019
Published online Sep 26, 2021. doi: 10.12998/wjcc.v9.i27.8008
Table 3 Results of multivariable logistic regression analysis
Characteristics
P value
OR
95%CI of OR
Lower limit
Upper limit
East region< 0.001
Middle region< 0.0010.4280.3310.553
West region< 0.0010.4060.3090.533
North region< 0.0017.1695.13910.003
< 20 yr0.07
20-25 yr0.0772.6350.9007.711
25-30 yr0.2451.8560.6545.269
30-35 yr0.3671.6230.5674.646
35-40 yr0.3991.5960.5384.738
> 40 yr0.9610.9680.2593.617
Full-term birth 0.0020.4910.3160.763
PROM0.0221.4041.0511.876