Table 2.
Characteristics of the study cohort: Socio-demographic factors
| Variable | n = 89434(%) |
|---|---|
| Age at entry (mean±SD) |
48.51(±5.61) |
| Birth place |
|
| Canada |
73611 (82.31) |
| Foreign |
15823 (17.69) |
| Years in Canada |
|
| Born in Canada |
73538 (82.22) |
| 1-5 |
516 (0.58) |
| 6-10 |
955 (1.07) |
| 11-20 |
4567 (5.11) |
| > 20 |
9858 (11.02) |
| Mother's birth place |
|
| Canada |
59103 (66.09) |
| Foreign |
30331 (33.91) |
| Father's birth place |
|
| Canada |
56169 (62.80) |
| Foreign |
33265 (37.20) |
| Ethnic origin |
|
| Canada |
336 (0.38) |
| Foreign |
89098 (99.62) |
| Marital status |
|
| Ever Married |
84046 (93.98) |
| Never Married |
5388 (6.02) |
| Occupations |
|
| Homemakers |
31186 (34.86) |
| Clerical Occupations |
18922 (21.16) |
| Social sciences, religion, teaching, artistic, literary and related |
9808 (10.97) |
| Medicine and health |
8405 (9.40) |
| Administrative and Managerial |
6026 (6.74) |
| Sales Occupations |
4836 (5.41) |
| Service Occupations-food and personal service |
3460 (3.87) |
| Processing, machining, fabricating, and construction occupations |
1187 (1.33) |
| Natural sciences, engineering and math |
684 (0.76) |
| Transport, material handling, equipment operating |
622 (0.70) |
| Farming, forestry and fishing |
567 (0.63) |
| Others |
3731 (4.17) |
| Allocation group |
|
| No mammography |
44744 (50.03) |
| Mammography | 44690 (49.97) |