Table 2.

Bivariate Analysis and Multivariate Logistic Regression of Association of BMI, WC and Breast Cancer Risk by Menopausal Status. Brazil, 2017

Characteristics	Premenopausal
	Cases	Control	OR crude	95% CI	OR adjusteda	95% CI
	(n=32)	(n=128)
	n (%)	n (%)
cPrediagnosis BMI (kg/m2)
<30	20 (16.5)	101 (83.5)	1.0
≥30	12 (30.8)	27 (69.2)	2.24	0.90-5.57	1.64	0.95-2-85
p value				0.05		0.07
dCurrent BMI (kg/m2)
<30	24 (19.0)	102 (81.0)	1.0
≥30	8 (23.5)	26 (76.5)	1.31	0.48-3.51	1.23	0.70-2.18
p value	0.56			0.56		0.47
eBMI at age 20 years (kg/m2)
<30	31 (19.9)	125 (80.1)	1.0
≥30	1 (25.0)	3 (75.0)	1.34	0.22-7.07	1.06	0.27-4.24
p value				0.59*		0.93
Waist circumference (cm)
<80	3 (13.0)	20 (87.0)	1.0
≥80	29 (21.2)	108 (78.8)	1.79	0.46-8.16	1.25	0.60-2.62
p value				0.27*		0.54

^aAdjusted for age, contraceptive use, age at menarche, nulliparity,

^breastfeeding, family history of breast cancer;

^cBased on self-reported prediagnosis weight at least 6 month before breast cancer diagnosis and measured height at interview;

^bBMI measured at interview;

^eBased on self-reported weight with age 20 years and measured height at interview;

^*Fisher´s exact test; OR, odds ratio; CI, confidence interval.