Table 1.
Distribution of 612 Cases of Breast Cancer and 615 Controls and Odds Ratios (OR)* of breast Cancer and Corresponding 95% confidence intervals (CI) according to selected variables†. Setif, Algeria. 2012-2016
| Cases |
Controls |
OR | (95% CI) | |||
|---|---|---|---|---|---|---|
| Variable | N | (%) | N | (%) | ||
| Age (years) | ||||||
| <40 | 163 | (26.6) | 151 | (24.6) | - | |
| 40-44 | 135 | (22.1) | 133 | (21.6) | - | |
| 45-49 | 104 | (17.0) | 105 | (17.1) | - | |
| 50-59 | 141 | (23) | 155 | (25.2) | - | |
| ≥60 | 69 | (11.3) | 71 | (11.5) | - | |
| Median age of patients | 45 | - | 46 | - | - | |
| X 2 4 =1.16; p-value=0.88 | ||||||
| Education (years) | ||||||
| 0 | 217 | (36.2) | 170 | (28.4) | 1 | |
| 1-5 | 54 | (9.0) | 62 | (10.4) | 0.68 | (0.45-1.03) |
| 6-10 | 180 | (30.0) | 196 | (32.7) | 0.68 | (0.51-0.92) |
| ≥11 | 149 | (24.8) | 171 | (28.6) | 0.63 | (0.46-0.86) |
| X 2 3 =8.45; p-value=0.04 | ||||||
| Marital status | ||||||
| Never married | 73 | (12.0) | 74 | (12.3) | 1 | |
| Divorced/widow | 75 | (12.3) | 68 | (11.3) | 1.29 | (0.79-2.09) |
| Married | 460 | (75.7) | 462 | (76.5) | 1.14 | (0.79-1.62) |
| X 2 2 =0.34; p-value=0.84 | ||||||
| Body Mass Index (kg/m2) | ||||||
| <25 | 143 | (25.7) | 143 | (25.5) | 1 | |
| 25-29 | 236 | (42.4) | 225 | (40.2) | 1.09 | (0.83-1.43) |
| 30-31 | 70 | (12.6) | 85 | (15.2) | 0.86 | (0.59-1.25) |
| ≥32 | 108 | (19.4) | 107 | (19.1) | 1.04 | (0.74-1.45) |
| X 2 3 =1.71; p-value=0.63 | ||||||
*estimates adjusted for age (quinquennia) and education (when appropriate); †, the sums may not add up to the total because of missing values.