Article Figures & Data
Figures
- Figure 1.
Selection of study sample from the 2012 CCHS survey respondents
CCHS—Canadian Community Health Survey.
Tables
- Table 1.
Characteristics of women aged 40 to 74 in the CCHS sample and in the Canadian population, 2012: Data for 18 312 women aged 40–74 in the CCHS data set were weighted to represent 7.6 million women in the Canadian population in the same age range in 2012.
PARTICIPANT CHARACTERISTICS SAMPLE, N (%)* WEIGHTED, N (%)* Total 18 312 (100.0) 7 646 124 (100.0) Age group, y • 40–49 3859 (21.1) 2 403 118 (31.4) • 50–59 5895 (32.2) 2 611 514 (34.2) • 60–69 6310 (34.5) 2 005 841 (26.2) • 70–74 2248 (12.3) 625 651 (8.2) Marital status • Single or never married 2135 (11.7) 721 087 (9.4) • Widowed, separated, or divorced 5083 (27.8) 1 576 884 (20.6) • Married or common law 11 034 (60.3) 5 327 502 (69.7) • Missing 60 (0.3) 20 651 (0.3) No. of years since immigration • 0–9 y 224 (1.2) 237 976 (3.1) • ≥ 10 y 2411 (13.2) 1 594 196 (20.9) • Not an immigrant 15 107 (82.5) 5 506 743 (72.0) • Missing 570 (3.1) 307 209 (4.0) Educational attainment • Less than secondary school 2947 (16.1) 1 039 957 (13.6) • Secondary school graduation 4141 (22.6) 1 681 850 (22.0) • Postsecondary graduation 10 594 (57.9) 4 633 508 (60.6) • Missing 630 (3.4) 290 809 (3.8) Household income • < $20 000 2328 (12.7) 692 930 (9.1) • $20 000–$39 999 4492 (24.5) 1 547 502 (20.2) • $40 000–$59 999 3729 (20.4) 1 449 498 (19.0) • $60 000–$79 999 2591 (14.2) 1 115 459 (14.6) •≥ $80 000 5156 (28.2) 2 838 410 (37.1) • Missing 16 (< 0.1) 2325 (< 0.1) Regular doctor • No 1512 (8.3) 613 220 (8.0) • Yes 16 792 (91.7) 7 031 661 (92.0) • Missing 8 (< 0.1) 1243 (< 0.1) No. of years since last physical checkup • > 2 y 2328 (12.7) 1 374 036 (18.0) • 1–2 y 1255 (6.9) 1 540 249 (20.1) • < 1 y 12 502 (68.3) 3 871 929 (50.6) • Missing 2227 (12.2) 859 910 (11.3) No. of years since last Papanicolaou test • > 5 y 3952 (21.6) 1 310 732 (17.1) • 3–5 y 1382 (7.6) 503 794 (6.6) • < 3 y 11 275 (61.6) 5 053 922 (66.1) • Missing 1703 (9.3) 186 553 (10.2) BMI category • Obese (≥ 30.0 kg/m2) 4198 (22.9) 1 547 640 (20.2) • Overweight (25.0–29.9 kg/m2) 5464 (29.8) 2 166 713 (28.3) • Normal weight (18.5–24.9 kg/m2) 7302 (39.9) 3 378 774 (44.2) • Underweight (< 18.5 kg/m2) 367 (2.0) 166 912 (2.2) • Missing 981 (5.4) 386 085 (5.1) Frequency of alcohol consumption •≥ 4 times per wk 3396 (18.5) 903 859 (11.8) • 1–3 times per wk 4849 (26.5) 2 012 753 (26.3) • < 3 times per mo to < once per mo 3717 (20.3) 2 731 194 (35.7) • Missing 6350 (34.7) 1 998 318 (26.1) Smoking status • Daily 3016 (16.5) 1 120 110 (14.7) • Occasionally 584 (3.2) 270 329 (3.5) • Not at all 14 633 (79.9) 6 209 718 (81.2) • Missing 79 (0.4) 45 967 (0.6) BMI—body mass index, CCHS—Canadian Community Health Survey.
↵* Not all percentages add to 100 owing to rounding.
- Table 2.
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.
- Table 3.
Screening mammography participation among Canadian women by age group and region, 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.
REGION AGE GROUPS OF SCREENING MAMMOGRAPHY PARTICIPANTS, N (%)*† TOTAL 40–49 Y 50–59 Y 60–69 Y 70–74 Y Ontario 307 030 (30.8) 623 259 (64.3) 570 336 (74.2) 139 998 (64.1) 1 640 623 (55.5) British Columbia 139 471 (41.1) 201 185 (61.1) 198 473 (68.2) 42 132 (58.7) 581 261 (56.3) Alberta 100 845 (45.8) 183 152 (66.5) 122 969 (69.2) 31 635 (62.7) 438 601 (60.6) Saskatchewan 13 960 (25.0) 45 015 (59.7) 30 358 (58.4) 9082 (49.7) 98 415 (48.8) Manitoba 26 178 (30.5) 58 124 (65.6) 41 908 (70.6) 12 961 (56.5) 139 171 (54.2) Quebec 97 468 (18.9) 389 201 (63.1) 313 743 (69.4) 89 662 (52.5) 890 074 (50.7) New Brunswick 11 712 (22.3) 38 824 (61.3) 35 839 (67.2) 8741 (51.7) 95 116 (51.1) Nova Scotia 29 581 (45.2) 51 001 (60.1) 36 135 (58.9) 11 337 (50.4) 128 054 (54.7) Prince Edward Island 5629 (56.1) 6221 (54.0) 6125 (52.8) 1871 (65.2) 19 846 (55.1) Newfoundland and Labrador 15 914 (42.6) 24 399 (59.8) 27 843 (68.9) 4609 (57.8) 72 765 (57.5) Territories 2273 (31.4) 3582 (55.2) 1739 (49.2) 138 (35.4) 7732 (43.8) 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.
↵† Women who reported that they had had a mammogram less than 2 y ago and selected age, having regular checkups or routine screening, having family history of breast cancer, or using hormone replacement therapy as reasons for having a mammogram were considered screening participants.
- Table 4.
Odds ratios for select characteristics for CCHS sample of women aged 40–74 who were screening mammography participants, 2012
PARTICIPANT CHARACTERISTICS* SCREENING MAMMOGRAPHY PARTICIPATION† UNADJUSTED OR (95% CI)‡ ADJUSTED OR (95% CI)‡‖ SAMPLE, %‡ WEIGHTED, %§ Age group, y • 40–49 29.1 31.4 Reference Reference • 50–59 63.9 63.4 4.79 (4.37–5.24) 5.11 (4.65–5.60) • 60–69 69.4 70.3 6.48 (5.91–7.11) 7.61 (6.89–8.40) • 70–74 57.9 58.4 3.62 (3.23–4.05) 4.53 (4.01–5.13) Marital status • Never married 47.6 41.3 Reference Reference • Widowed, separated, or divorced 56.8 54.5 1.54 (1.39–1.71) 1.06 (0.95–1.19) • Married or common law 60.1 56.5 1.77 (1.61–1.95) 1.27 (1.14–1.42) No. of years since immigration • 0–9 y 34.1 43.7 Reference Reference • ≥ 10 y 59.9 58.4 3.10 (2.23–4.19) 1.48 (1.07–2.05) • Not an immigrant 57.9 54.3 2.91 (2.18–3.88) 1.43 (1.04–1.96) Educational attainment • Less than secondary school 55.5 54.1 Reference Reference • Secondary school graduation 59.4 54.3 1.17 (1.05–1.29) 1.19 (1.06–1.33) • Postsecondary graduation 57.8 55.1 1.07 (0.98–1.17) 1.24 (1.12–1.37) Household income • < $20 000 50.0 47.6 Reference Reference • $20 000–$39 999 57.9 54.5 1.40 (1.26–1.56) 1.31 (1.17–1.46) • $40 000–$59 999 59.6 56.8 1.51 (1.35–1.69) 1.50 (1.33–1.69) • $60 000–$79 999 60.1 53.0 1.53 (1.36–1.73) 1.69 (1.47–1.93) • ≥ $80 000 58.4 55.9 1.42 (1.28–1.57) 1.96 (1.73–2.22) Regular doctor • No 32.6 28.5 Reference Reference • Yes 59.9 56.9 3.37 (3.00–3.77) 3.30 (2.90–3.73) No. of years since last physical checkup • > 2 y 39.0 32.0 Reference Reference • 1–2 y 61.9 58.4 2.74 (2.10–3.59) 2.40 (1.80–3.22) • < 1 y 66.8 64.5 2.07 (1.58–2.72) 3.06 (2.30–4.08) No. of years since last Papanicolaou test • > 5 y 47.7 42.2 Reference Reference • 3–5 y 46.9 43.8 0.96 (0.85–1.09) 1.11 (0.97–1.26) • < 3 y 64.3 60.8 2.15 (1.99–2.33) 3.47 (3.18–3.79) BMI category • Obese (≥ 30.0 kg/m2) 57.9 54.3 Reference Reference • Overweight (25.0–29.9 kg/m2) 61.2 57.8 1.18 (1.08–1.28) 1.09 (0.99–1.19) • Normal weight (18.5–24.9 kg/m2) 56.1 54.0 0.93 (0.85–1.00) 0.96 (0.88–1.05) • Underweight (< 18.5 kg/m2) 45.1 37.6 0.58 (0.47–0.73) 0.63 (0.50–0.81) Frequency of alcohol consumption • ≥ 4 times per wk 63.9 57.7 Reference Reference • 1–3 times per wk 60.3 55.0 0.85 (0.76–0.96) 1.06 (0.94–1.20) • < 3 times per mo 56.4 54.3 0.71 (0.64–0.79) 0.90 (0.80–1.01) Smoking status • Daily 45.5 44.5 Reference Reference • Occasionally 51.6 46.7 1.32 (1.10–1.59) 1.41 (1.16–1.73) • Not at all 60.4 56.8 1.92 (1.77–2.09) 1.73 (1.59–1.90) Region • Ontario 59.2 55.5 Reference Reference • British Columbia 59.1 56.3 0.99 (0.89–1.10) 1.02 (0.91–1.14) • Alberta 62.0 60.6 1.14 (1.01–1.29) 1.12 (0.98–1.27) • Saskatchewan 51.8 48.8 0.74 (0.64–0.85) 0.71 (0.61–0.83) • Manitoba 54.5 54.2 0.81 (0.71–0.94) 0.78 (0.67–0.91) • Quebec 56.2 50.7 0.93 (0.85–1.02) 0.97 (0.88–1.07) • New Brunswick 56.5 51.1 0.97 (0.83–1.14) 0.98 (0.83–1.16) • Nova Scotia 55.7 54.7 0.88 (0.75–1.04) 0.90 (0.76–1.07) • Prince Edward Island 59.0 55.1 0.98 (0.76–1.28) 0.95 (0.72–1.26) • Newfoundland and Labrador 59.9 57.5 1.14 (0.95–1.38) 1.17 (0.96–1.43) • Territories 43.0 43.8 0.51 (0.40–0.65) 0.60 (0.46–0.78) BMI—body mass index, CCHS—Canadian Community Health Survey, OR—odds ratio.
↵* Women who reported that they had had a mammogram less than 2 y ago and selected age, having regular checkups or routine screening, having family history of breast cancer, or using hormone replacement therapy as reasons for having a mammogram were considered screening participants.
↵† 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.
↵‡ Data for 16 858 women aged 40–74 in the 2012 CCHS data set.
↵§ Data for 16 858 women aged 40–74 weighted to represent 7.1 million women aged 40–74 in the same age range.
↵‖ Adjusted for age, marital status, and household income.
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