Table 5.

Risk factors on OAB symptoms after multivariate regression analysis

		Frequency OR (95% CI)	Urgency OR (95% CI)	Urge incontinence OR (95% CI)	Any OAB OR (95% CI)
Age (years)a	45–55		Ref	Ref	Ref
	56–65		1.0 (0.8, 1.4)	0.9 (0.6, 1.1)	0.9 (0.7, 1.2)
	66–75		1.4 (1.0, 2.0)	1.3 (0.9, 1.8)	1.3 (1.0, 1.8)
	76–85		2.7 (1.5, 4.9)	2.2 (1.3, 3.8)	2.1 (1.2, 3.7)
Body mass index (kg/m2)b	<20	0.7 (0.3, 1.6)	0.4 (0.2, 0.9)	0.7 (0.3, 1.5)	0.5 (0.3, 1.0)
	20–25	Ref	Ref	Ref	Ref
	25–30	1.5 (1.1, 2.0)	1.2 (0.9, 1.6)	1.3 (1.0, 1.8)	1.3 (1.0, 1.6)
	≥30	1.7 (1.2, 2.4)	2.2 (1.5, 3.1)	2.0 (1.4, 2.9)	2.2((1.5, 3.1)
Smoking
Smoking in the pastc	Yes		1.4 (1.1, 1.9)
	No		Ref
Current smokingc	Yes		1.7 (1.2, 2.3)		1.4 (1.0, 1.8)
	No		Ref		Ref
Postmenopausal status	Yes	1.3 (1.0, 1.8)
	No	Ref
Previous gynaecological surgery
Prolapse surgeryd	Yes		2.3 (1.4, 3.6)
	No		Ref
Incontinence surgerye	Yes	2.9 (1.5, 5.5)		4.3 (2.3, 8.2)	6.7 (2.8, 16.3)
	No	Ref		Ref	Ref
Prolapse symptomsf	Yes	2.4 (1.6, 3.5)	2.2 (1.4, 3.3)	1.8 (1.2, 2.6)	2.3 (1.5, 3.5)
	No	Ref	Ref	Ref	Ref
Variance explained by the modelg		5.8%	8.8%	6.6%	9.1%

OR odds rario, Ref reference

^aData on 16 women are missing

^bData on 33 women are missing

^cData on 15 women are missing

^dData on 13 women are missing

^eData on 18 women are missing

^fData on 24 women are missing

^gNagelkerke R ²