Mammography participation among Canadian women by age group, 2012: Data for 16 858 women aged 40–74 in the CCHS data set were weighted to represent 7.1 million women in the Canadian population in the same age range in 2012.
| MAMMOGRAPHY PARTICIPATION | AGE GROUPS, N (%)* | TOTAL, N (%) | |||
|---|---|---|---|---|---|
| 40–49 Y | 50–59 Y | 60–69 Y | 70–74 Y | ||
| Have ever had mammogram | 1 265 539 (52.9) | 2 284 727 (88.4) | 1 874 475 (94.6) | 574 943 (94.3) | 5 999 684 (79.3) |
| Had mammogram < 2 y ago | 899 171 (37.6) | 1 765 104 (68.9) | 1 508 586 (76.5) | 390 822 (64.8) | 4 563 683 (60.6) |
| Had mammogram 2 to < 5 y ago | 213 677 (8.9) | 345 055 (13.5) | 193 202 (9.8) | 101 773 (16.9) | 853 707 (11.3) |
| Had mammogram for diagnostic reasons† | 309 860 (12.9) | 270 928 (10.5) | 181 812 (9.2) | 58 351 (9.6) | 820 951 (10.8) |
| Had mammogram for screening reasons† | 958 705 (40.1) | 2 041 901 (79.0) | 1 715 677 (86.6) | 513 391 (84.2) | 5 229 674 (69.1) |
| Had mammogram < 2 y ago for screening reasons† | 750 060 (31.4) | 1 623 962 (63.4) | 1 385 467 (70.3) | 352 167 (58.4) | 4 111 656 (54.6) |
CCHS—Canadian Community Health Survey.
↵* Women whose responses were “don’t know,” “refused,” or “not stated” to the questions asking if they ever had a mammogram and when was the last time they had a mammogram were excluded.
↵† Previously detected lump and follow-up of breast cancer were coded as diagnostic reasons for mammograms. Women who indicated their age, having regular checkup or routine screening, having family history of breast cancer, or using hormone replacement therapy as reasons for having a mammogram were considered screening participants.