Table 3.

Likelihood of persistent CRA by personal characteristics among premenopausal women diagnosed with breast cancer with greater than 12 months follow-up (N=399).

Variable	Unadjusted			Multivariable¹

	OR	95% CI	p-value	OR	95% CI	p-value
Reproductive History
Nulliparity
No	1.00	Referent		1.00	Referent
Yes	0.68	0.42-1.08	0.10	1.42	0.69-2.94	0.34
Nulligravidity
No		Referent		1.00	Referent
Yes	0.78	0.46-1.31	0.35	1.19	0.53-2.69	0.68
Age at Menarche
<12	1.09	0.62-1.90	0.78	0.91	0.39-2.14	0.83
12-13	1.00	Referent		1.00	Referent
>13	1.25	0.76-2.06	0.38	2.55	1.14-5.70	0.02
	p-value, test for trend = 0.90			p-value, test for trend = 0.02
Age at first birth
<25	1.00	Referent		1.00	Referent
25-29	1.28	0.68-2.43	0.45	1.47	0.52-4.14	0.47
30-34	0.59	0.33-1.05	0.07	0.67	0.27-1.68	0.40
≥35	1.37	0.58-3.23	0.47	1.01	0.27-3.68	0.99
	p-value, test for trend = 0.72			p-value, test for trend = 0.66
Lifestyle Factors
Alcohol (drinks per week)
<1	1.00	Referent		1.00	Referent
1-4	1.15	0.71-1.87	0.57	0.74	0.34-1.60	0.44
5-9	1.33	0.62-2.86	0.47	0.55	0.17-1.79	0.32
10-19	2.88	0.76-11.0	0.12	2.19	0.30-16.0	0.44
	p-value, test for trend = 0.12			p-value, test for trend = 0.74
Cigarette Smoking
Never	1.00	Referent		1.00	Referent
Past	1.16	0.76-1.76	0.50	1.70	0.86-3.34	0.13
Current	1.63	0.79-3.41	0.19	3.69	1.18-11.6	0.03
Anthropometry
Weight (kg)	1.01	1.00-1.03	0.14	1.01	0.99-1.03	0.33
Height (inches)	1.00	0.97-1.03	0.90	1.03	0.98-1.09	0.24
BMI (kg/m²)	1.03	1.00-1.08	0.13	1.02	0.95-1.08	0.64
Underweight²	0.87	0.45-1.70	0.68	1.21	0.43-3.44	0.72
Healthy	1.00	Referent		1.00	Referent
Overweight/obese²	1.88	1.18-3.00	0.01	1.88	0.91-3.90	0.09