Table 1: Distribution of sociodemographic and selected reproductive variables in cases and controls.
|
Variables |
Categories |
Controls % (n = 889) |
Cases % (n = 572) |
Global p - Value |
|
Age groups |
≤ 49 |
200 22.5 |
123 21.5 |
|
|
|
50 - 59 |
223 25.1 |
143 25.0 |
|
|
|
60 - 69 |
243 27.3 |
155 27.1 |
|
|
|
≥ 70 |
223 25.1 |
151 26.4 |
0.94 |
|
|
|
|
|
|
|
Health system |
Public |
667 75.0 |
461 80.6 |
|
|
|
Private |
222 25.0 |
111 19.4 |
0.01 |
|
|
|
|
|
|
|
Education years |
≤ 6 |
551 62.0 |
359 62.8 |
|
|
|
7 - 12 |
223 25.1 |
142 24.8 |
|
|
|
≥ 13 |
115 12.9 |
71 12.4 |
0.94 |
|
|
|
|
|
|
|
Residence |
Urban |
805 90.5 |
498 87.1 |
|
|
|
Rural |
84 9.4 |
74 12.9 |
0.03 |
|
|
|
|
|
|
|
Body Mass Index |
≤ 24.99 |
389 43.8 |
238 41.6 |
|
|
(kg/m2) |
25.0 - 29.99 |
327 36.8 |
210 36.7 |
|
|
|
≥ 30.0 |
173 19.5 |
124 21.7 |
0.54 |
|
|
|
|
|
|
|
Fam.History of BC |
No |
811 91.2 |
450 78.7 |
|
|
|
Yes |
78 8.8 |
122 21.3 |
< 0.001 |
|
|
|
|
|
|
|
Menopausal status |
Pre |
182 20.5 |
97 17.0 |
|
|
|
Post |
707 79.5 |
475 83.0 |
0.09 |
|
|
|
|
|
|
|
Age of menarche |
≤ 11 |
207 23.3 |
138 24.1 |
|
|
|
12 |
273 30.7 |
145 25.3 |
|
|
|
13 |
175 19.7 |
136 23.8 |
|
|
|
≥ 14 |
234 26.3 |
153 26.7 |
0.09 |
|
|
|
|
|
|
|
Nº of live births |
Nulliparous |
111 12.5 |
104 18.2 |
|
|
|
1 - 2 |
394 44.3 |
252 44.1 |
|
|
|
≥ 3 |
384 43.2 |
216 37.8 |
0.006 |
|
|
|
|
|
|
|
Age at 1st live birth |
≤ 20 |
281 36.1 |
150 32.0 |
|
|
|
21 - 26 |
304 39.1 |
173 37.0 |
|
|
|
≥ 27 |
193 24.8 |
145 31.0 |
0.054 |
|
|
|
|
|
|
|
Breastfeeding time |
≤ 3 |
283 31.8 |
218 38.1 |
|
|
(total months) |
4 - 15 |
307 34.5 |
168 29.4 |
|
|
|
≥ 16 |
299 33.6 |
186 32.5 |
0.03 |