Table 4

- Logistic regression analysis results.

Variables	Perianal disease
	2^nd and 3^rd trimester (Model 1)		Immediate postpartum (Model 2)		one month postpartum (Model 3)
	P-values	OR (95% CI)	P-values	OR (95% CI)	P-values	OR (95% CI)
Income
Insufficient	0.014	1 (0.207-0.838)			0.113	0.559 (0.272-1.148)
Sufficient	0.014	1 (ref)			0.113	1 (ref)
History
Yes	0.001	5.955 (2.569-13.804)			0.001	4.917 (2.134-11.327)
No	0.001	1 (ref)			0.001	1 (ref)
Consumption of fibrous foods
No consumption	0.001	2.757 (1.520-4.999)			0.001	2.936 (1.584-5.439)
Consuming	0.001	1 (ref)			0.001	1 (ref)
Constipation
Yes	0.001	7.407 (3.822-14.353)			0.001	9.512 (4.583-19.742)
No	0.001	1 (ref)			0.001	1 (ref)
Duration of the pushing stage
Above average			0.001	12.139 (3.492-42.195)	0.001	23.721 (5.363-104.915)
Average and below			0.001	1 (ref)	0.001	1 (ref)
Birth weight
Above average			0.630	1.454 (0.318-6.652)	0.827	0.818 (0.135-4.953)
Average and below			0.630	1 (ref)	0.827	1 (ref)

OR: odds ratio, CI: confidence interval, ref: reference