Table 2.

HRs for BC-specific mortality associated with BMI and WHR, in the CBCS Phases I and II

Variable	Deaths/N	Model 1 HR (95 % CI)	Model 2 HR (95 % CI)	Model 3 HR (95 % CI)
BMI
All BC patients
<25 kg/m2	84/395	1	1	1
25 to <30 kg/m2	79/308	1.27 (0.91, 1.78)	1.21 (0.86, 1.71)	1.07 (0.76, 1.52)
≥30 kg/m2	106/411	1.06 (0.75, 1.48)	1.01 (0.71, 1.44)	0.97 (0.68, 1.37)
Basal-like
<25 kg/m2	10/53	1	1	1
25 to <30 kg/m2	20/62	2.03 (0.85, 4.84)	2.18 (0.85, 5.54)	1.40 (0.56, 3.48)
≥30 kg/m2	30/83	2.21 (0.94, 5.21)	2.44 (0.97, 6.12)	1.67 (0.69, 4.05)
Luminal
<25 kg/m2	53/268	1	1	1
25 to <30 kg/m2	42/198	1.16 (0.74, 1.81)	1.07 (0.68, 1.70)	1.04 (0.66, 1.64)
≥30 kg/m2	55/251	0.95 (0.60, 1.49)	0.86 (0.53, 1.39)	0.84 (0.52, 1.36)
WHR
All BC patients
<0.77	61/284	1	1	1
0.77 to < 0.84	94/389	1.09 (0.77, 1.54)	1.08 (0.76, 1.55)	0.95 (0.66, 1.36)
≥0.84	118/451	1.14 (0.79, 1.65)	1.12 (0.76, 1.64)	0.91 (0.62, 1.34)
Basal-like
<0.77	8/36	1	1	1
0.77 to <0.84	29/81	1.49 (0.64, 3.46)	1.05 (0.43, 2.56)	1.35 (0.58, 3.15)
≥0.84	24/83	0.98 (0.38, 2.49)	0.64 (0.24, 1.74)	0.94 (0.37, 2.41)
Luminal
<0.77	41/201	1	1	1
0.77 to <0.84	44/240	0.92 (0.57, 1.47)	0.94 (0.58, 1.53)	0.75 (0.46, 1.22)
≥0.84	67/282	1.15 (0.71, 1.85)	1.21 (0.73, 2.08)	0.82 (0.50, 1.36)

Model 1 was adjusted for age, race, study phase, income, education, physical activity, alcohol intake, smoking, and parity; model 2 was additionally adjusted for WHR (in model of BMI) or BMI (in model of WHR); model 3 was additionally adjusted for tumor stage, tumor size, lymph node status, histological-type, and variables in model 1