Table 3 |
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|
Sociodemographic characteristics and potential risk factors among post-menopausal participants of the MASTOS case control study |
|||
|
Variable |
Controls (% of n = 817)a |
Cases (% of n = 935)a |
P-Value |
|
|
|||
|
Education Category |
|||
|
- Primary |
395 (48.3) |
394 (42.1) |
0.044 |
|
- Secondary |
277 (33.9) |
334 (35.7) |
|
|
- College |
77 (9.4) |
98 (10.5) |
|
|
- University |
62 (7.6) |
96 (10.3) |
|
|
|
|||
|
Age at Interview |
|||
|
- < 45 years |
4 (0.5) |
57 (6.1) |
< 0.001 |
|
- 45-54 years |
187 (22.9) |
263 (28.1) |
|
|
- 55-64 years |
488 (59.7) |
383 (41.0) |
|
|
- ≥ 65 |
138 (16.9) |
232 (24.8) |
|
|
|
|||
|
Height |
158.7 ± 6.2 |
159.1 ± 7.1 |
0.190b |
|
|
|||
|
BMI category |
|||
|
- < 20 (kg/m2) |
6 (0.7) |
20 (21.4) |
0.001 |
|
- 20-24.9 (kg/m2) |
190 (23.3) |
216 (23.1) |
|
|
- 25-29.9 (kg/m2) |
323 (39.5) |
326 (34.9) |
|
|
- ≥ 30 (kg/m2) |
201 (24.6) |
303 (32.4) |
|
|
|
|||
|
Family History of BC |
|||
|
- No |
750 (91.8) |
770 (82.4) |
< 0.001 |
|
- Yes |
66 (8.1) |
163 (17.4) |
|
|
|
|||
|
Age at Menarche |
|||
|
- ≥ 14 |
326 (39.9) |
331 (35.4) |
0.087 |
|
- 12-13 |
400 (49.0) |
477 (51.0) |
|
|
- > 12 |
87 (10.6) |
123 (13.2) |
|
|
|
|||
|
Parity |
|||
|
- 0 |
65 (8.0) |
88 (9.4) |
0.251 |
|
- 1 |
56 (6.9) |
68 (7.3) |
|
|
- 2 |
330 (40.4) |
403 (43.1) |
|
|
- 3 or more |
366 (44.8) |
376 (40.2) |
|
|
|
|||
|
Age at FFTPc |
|||
|
- < 20 |
108 (13.2) |
92 (9.8) |
0.007 |
|
- 20 - < 25 |
378 (46.3) |
397 (42.5) |
|
|
- 25 - < 30 |
189 (23.1) |
236 (25.2) |
|
|
- ≥ 30 |
123 (15.1) |
185 (19.8) |
|
|
|
|||
|
Breastfeeding |
|||
|
- Yes |
574 (70.3) |
606 (64.8) |
0.015 |
|
- No |
243 (29.7) |
329 (35.2) |
|
|
|
|||
|
Oral Contraceptive use |
|||
|
- No |
679 (83.1) |
758 (81.1) |
0.352 |
|
- Yes |
137 (16.8) |
172 (18.4) |
|
|
|
|||
|
HRT use |
|||
|
- No |
572 (70.0) |
794 (84.9) |
< 0.001 |
|
- Yes |
238 (29.1) |
133 (14.2) |
|
|
|
|||
|
Smoking Status |
|||
|
- Never |
676 (82.7) |
747 (79.9) |
0.003 |
|
- Past |
53 (6.5) |
102 (10.9) |
|
|
- Current |
88 (10.8) |
84 (9.0) |
|
|
|
|||
|
Exercise |
|||
|
- No exercise |
399 (48.8) |
523 (55.9) |
< 0.001 |
|
- Up to 3 hrs/wk |
214 (26.2) |
252 (27.0) |
|
|
- > 3 and ≤ 6 hrs/wk |
141 (17.3) |
127 (13.6) |
|
|
- > 6 hrs/wk |
63 (7.7) |
33 (3.5) |
|
|
|
|||
|
Mediterranean Diet Score - Panagiotakos |
|||
|
- ≤ 30 |
227 (27.8) |
292 (31.2) |
0.264 |
|
- 31-35 |
224 (27.4) |
266 (28.4) |
|
|
- 36-40 |
239 (29.3) |
246 (26.3) |
|
|
- > 40 |
127 (15.5) |
131 (14.0) |
|
|
|
|||
|
Mediterranean Diet Score - Martinez-Gonzalez |
|||
|
- 0-4 |
258 (31.6) |
322 (34.4) |
0.429 |
|
- 5-6 |
237 (29.0) |
242 (25.9) |
|
|
- 6-7 |
196 (24.0) |
221 (23.6) |
|
|
- 8-9 |
126 (15.4) |
150 (16.1) |
|
|
|
|||
|
a Failure of category counts to add up to this number, or of percentages to add up to 100 denotes missing values b Mean (SD) and p-value of independent t-test. In all other cases, p-values of χ2 test are presented. c First full-term pregnancy |
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|
Demetriou et al. BMC Cancer 2012 12:113 doi:10.1186/1471-2407-12-113 |
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