Association of FTO Mutations with Risk and Survival of Breast Cancer in a Chinese Population

Table 1

Selected characteristics of cases and controls.

Characteristics	Cases ()	Controls ()	value
Age (year)	47.9 ± 9.2	48.3 ± 8.9	0.50
Age at menarche	14.7 ± 1.7	14.9 ± 1.7	0.02
BMI (kg/m^2)	24.0 ± 3.7	23.5 ± 3.4	0.007
Menopause	301 (56.1)	323 (60.1)	0.17
Family history of breast cancer	16 (3.0)	10 (1.9)	0.23
Ever breastfeeding	477 (88.8)	507 (94.4)	0.001
Education
Junior middle school or below	258 (48.0)	204 (38.0)	0.002
Senior middle school	163 (30.4)	207 (38.5)
College or above	116 (21.6)	126 (23.5)
ER (, %)
Positive	343 (63.9)
Negative	194 (36.1)
PR (, %)
Positive	299 (55.7)
Negative	238 (44.3)
Histologic grade (, %)
I	150 (27.9)
II	227 (42.3)
III	160 (29.8)
Clinical stage
1-2	409 (76.2)
3-4	128 (23.8)
Tumor size (, %)
≤2	194 (36.1)
>2	343 (63.9)