Table 3

Relationship between pregnancy symptoms and domestic violence in pregnant women referring to Urmia health centres based on the general linear model (n=415)

Variable	Unadjusted		Adjusted
Variable	β (95% CI)*	P value	β (95% CI)*	P value
Physical violence (reference: without domestic violence)
Mild	16.93 (15.06 to 18.81)	<0.001	2.56 (1.54 to 3.58)	<0.001
Moderate	39.96 (30.46 to 35.47)	<0.001	5.49 (4.18 to 6.80)	<0.001
Sexual violence (reference: without domestic violence)
Mild	4.67 (1.59 to 7.75)	0.003	9.55 (8.36 to 10.74)	<0.001
Moderate	13.23 (10.74 to 15.72)	<0.001	13.23 (1074 to 15.72)	<0.001
Severe	32.56 (28.10 to 37.02)	<0.001	24.38 (21.75 to 27.02)	<0.001
Emotional violence (reference: without domestic violence)
Mild	3.36 (0.26 to 4.46)	0.034	8.75 (7.63 to 9.86)	<0.001
Moderate	7.15 (3.34 to 10.97)	<0.001	12.15 (10.64 to 13.67)	<0.001
Severe	20.33 (16.59 to 24.09)	<0.001	19.89 (18.32 to 21.47)	<0.001
History of smoking (reference: no)
Yes	17.10 (13.60 to 20.60)	<0.001	1.87 (1.16 to 2.58)	<0.001
History of abortion (yes)
No	−23.74 (−25.46 to −22.01)	<0.001	−0.27 (−2.49 to 2.44)	0.983
History of participation in birth preparation classes (reference: no)
Yes	−26.96 (−29.25 to −24.66)	<0.001	−3.45 (−4.64 to −2.25)	<0.001

Adjusted R²=0.877.
*95% CI.