Table 4

Association of sociodemographic, anthropometric and lifestyle factors with breast cancer

VariablesCase
N (%)
Control
N (%)
Bivariate analysisMultivariable analysis
COR (95% CI)P valueAOR (95% CI)P value
Age group (years)
<39106 (46.1)136 (59.1)1:001:001:00
40–4958 (25.2)45 (19.6)1.65 (1.04 to 2.63)0.0343.29 (1.39 to 7.77)0.007
50–5939 (17.0)36 (15.7)1.39 (0.827 to 2.34)0.2141.81 (0.661 to 4.96)0.248
>6027 (11.7)13 (5.7)2.67 (1.31 to 5.41)0.0072.44 (0.515 to 11.55)0.261
Occupation
Employed70 (30.4)131 (57)1:001:001:001:00
Unemployed160 (69.6)99 (43.0)3.03 (2.06 to 4.44)0.00014.28 (2.00 to 9.16)0.0001
Milk intake
Once a week or less189 (82.5)207 (90.8)1:001:001:00
More than once a week40 (15.7)21 (9.2)2.086 (1.19 to 3.67)0.0112.56 (1.02 to 6.43)0.045
Solid oil
No45 (19.6)114 (49.6)1:001:001:00
Yes185 (80.4)116 (50.4)4.04 (2.67 to 6.12)0.00016.77 (3.17 to 14.48)0.0001
Source of fuel
Electric54 (23.5)111 (48.3)1:001:001:00
Wood/animal dung88 (38.3)28 (12.2)6.46 (3.78 to 11.03)0.00015.30 (1.59 to 17.64)0.007
Charcoal/kerosene3 (1.3)20 (8.7)0.308 (0.088 to 1.08)0.0660.112 (0.012 to 1.01)0.051
Combination85 (37.0)71 (30.9)2.46 (1.57 to 3.87)0.00012.45 (1.16 to 5.15)0.019
Moderate exercise
No exercise173 (75.2)126 (54.8)1:001:001:00
<5 hours per week21 (9.1)67 (29.1)0.228 (0.133 to 0.392)0.00010.276 (0.114 to 0.628)0.002
5 hours and above per week36 (157)37 (16.1)0.709 (0.424 to 1.18)0.1880.496 (0.182 to 1.36)0.172
  • Stepwise multiple logistic regression. Adjusted for age, income, education, occupation, height, weight, body mass index, fruit intake, milk intake, solid oil intake, sources of fuel, frequency of moderate exercise, frequency of strenuous exercise, 1:00 is OR for reference/comparison group.

  • AOR, adjusted OR; COR, crude OR.