Table 3.
Variation in breast cancer screening participation, for adults with and without SMIs, by demographic characteristic, smoking status and BMI.
| Number of people | Proportion of eligible people who participated (95% CIs) | Unadjusted OR (95% CIs) | Adjusted OR (95% CIs) | |||
|---|---|---|---|---|---|---|
| No SMI N (%) | SMI N (%) | No SMI | SMI | |||
| Agea | ||||||
| 50–54 | 365,609 (27.52) | 4929 (26.52) | 51.03 (50.86, 51.19) | 40.88 (39.51, 42.27) | 0.66*** (0.63, 0.70) | 0.74*** (0.70, 0.78) |
| 55–59 | 355,596 (26.76) | 5218 (28.07) | 63.22 (63.06, 63.38) | 50.86 (49.50, 52.23) | 0.60*** (0.57, 0.64) | 0.69*** (0.65, 0.73) |
| 60–64 | 299,753 (22.56) | 4287 (23.06) | 64.22 (64.05, 64.39) | 50.52 (49.02, 52.03) | 0.57*** (0.54, 0.60) | 0.64*** (0.61, 0.69) |
| 65–69 | 257,554 (19.38) | 3484 (18.74) | 64.74 (64.56, 64.93) | 51.41 (49.73, 53.08) | 0.58*** (0.54, 0.62) | 0.64*** (0.60, 0.69) |
| 70–74 | 50,139 (3.77) | 669 (3.60) | 64.69 (64.27, 65.10) | 53.36 (49.50, 57.19) | 0.62*** (0.54, 0.73) | 0.70*** (0.60, 0.82) |
| Ethnicityb | ||||||
| White | 941,953 (70.90) | 13,339 (71.77) | 62.98 (62.88, 63.08) | 50.53 (49.68, 51.38) | 0.60*** (0.58, 0.62) | 0.67*** (0.65, 0.69) |
| Asian | 73,041 (5.50) | 1248 (6.71) | 49.73 (49.36, 50.09) | 40.95 (38.21, 43.74) | 0.70*** (0.63, 0.79) | 0.72*** (0.64, 0.81) |
| Black | 48,665 (3.66) | 1334 (7.18) | 44.95 (44.50, 45.39) | 38.68 (36.07, 41.36) | 0.77*** (0.69, 0.86) | 0.78*** (0.70, 0.88) |
| Mixed | 12,970 (0.98) | 333 (1.79) | 51.03 (50.17, 51.90) | 38.74 (33.52, 44.22) | 0.61*** (0.49, 0.76) | 0.68** (0.54, 0.86) |
| Other | 8688 (0.65) | 135 (0.73) | 46.41 (45.36, 47.46) | 43.70 (35.27, 52.50) | 0.90 (0.64, 1.26) | 0.87 (0.61, 1.23) |
| Unknown | 243,334 (18.31) | 2198 (11.83) | 57.91 (57.72, 58.11) | 46.77 (44.67, 48.88) | 0.64*** (0.59, 0.69) | 0.67*** (0.61, 0.73) |
| Deprivationc | ||||||
| Quintile 1 (least deprived) | 306,516 (23.07) | 2489 (13.39) | 67.54 (67.37, 67.70) | 59.46 (57.50, 61.39) | 0.70*** (0.65, 0.76) | 0.69*** (0.64, 0.75) |
| Quintile 2 | 273,336 (20.57) | 2782 (14.97) | 65.16 (64.98, 65.34) | 56.11 (54.24, 57.96) | 0.68*** (0.63, 0.74) | 0.70*** (0.64, 0.75) |
| Quintile 3 | 248,205 (18.68) | 3237 (17.42) | 61.13 (60.94, 61.32) | 50.91 (49.17, 52.65) | 0.66*** (0.62, 0.71) | 0.68*** (0.63, 0.73) |
| Quintile 4 | 244,503 (18.40) | 4363 (23.47) | 55.26 (55.06, 55.45) | 44.65 (43.17, 46.14) | 0.65*** (0.62, 0.69) | 0.68*** (0.63, 0.72) |
| Quintile 5 (most deprived) | 211,370 (15.91) | 5088 (27.37) | 50.36 (50.15, 50.57) | 40.23 (38.88, 41.60) | 0.66*** (0.63, 0.70) | 0.67*** (0.64, 0.71) |
| Unknown | 44,721 (3.37) | 628 (3.38) | 55.05 (54.59, 55.51) | 47.61 (43.65, 51.60) | 0.74*** (0.63, 0.87) | 0.79** (0.67, 0.93) |
| Regiond | ||||||
| North East | 47,272 (3.56) | 630 (3.39) | 65.59 (65.16, 66.02) | 53.02 (49.03, 56.96) | 0.59*** (0.51, 0.69) | 0.60*** (0.51, 0.71) |
| North West | 242,187 (18.23) | 3689 (19.85) | 63.02 (62.82, 63.21) | 49.74 (48.12, 51.37) | 0.58*** (0.54, 0.62) | 0.66*** (0.62, 0.7) |
| Yorkshire and Humber | 48,287 (3.63) | 668 (3.59) | 70.62 (70.21, 71.02) | 58.98 (55.14, 62.72) | 0.60*** (0.51, 0.70) | 0.68*** (0.58, 0.8) |
| East Midlands | 27,587 (2.08) | 281 (1.51) | 68.44 (67.89, 68.99) | 54.45 (48.43, 60.35) | 0.55*** (0.44, 0.70) | 0.66** (0.51, 0.85) |
| West Midlands | 22,1641 (16.68) | 2698 (14.52) | 54.45 (54.24, 54.66) | 45.63 (43.74, 47.53) | 0.70*** (0.65, 0.76) | 0.75*** (0.70, 0.81) |
| East of England | 61,391 (4.62) | 700 (3.77) | 69.45 (69.08, 69.81) | 60.29 (56.54, 63.91) | 0.67*** (0.57, 0.78) | 0.72*** (0.61, 0.84) |
| South West | 165,136 (12.43) | 1926 (10.36) | 65.17 (64.94, 65.40) | 51.40 (49.14, 53.65) | 0.57*** (0.52, 0.62) | 0.61*** (0.56, 0.67) |
| South Central | 169,436 (12.75) | 2019 (10.86) | 65.52 (65.30, 65.75) | 55.32 (53.12, 57.51) | 0.65*** (0.60, 0.71) | 0.67*** (0.61, 0.73) |
| London | 222,894 (16.78) | 4439 (23.88) | 49.06 (48.85, 49.27) | 38.50 (37.07, 39.95) | 0.65*** (0.61, 0.69) | 0.68*** (0.64, 0.72) |
| South East Coast | 122,820 (9.24) | 1537 (8.27) | 61.16 (60.88, 61.43) | 51.92 (49.39, 54.44) | 0.69*** (0.62, 0.76) | 0.77*** (0.70, 0.86) |
| Smoking statuse | ||||||
| Non-smoker | 858,462 (64.61) | 8696 (46.79) | 62.22 (62.12, 62.33) | 51.91 (50.85, 52.96) | 0.66*** (0.63, 0.68) | 0.71*** (0.68, 0.74) |
| Smoker | 470,189 (35.39) | 9891 (53.21) | 57.18 (57.04, 57.32) | 45.18 (44.20, 46.17) | 0.62*** (0.59, 0.64) | 0.66*** (0.63, 0.69) |
| BMIf | ||||||
| BMI < 30 | 1,237,757 (93.16) | 16,046 (86.33) | 60.47 (60.38, 60.56) | 48.16 (47.38, 48.93) | 0.61*** (0.59, 0.63) | 0.68*** (0.65, 0.70) |
| BMI > 30 | 90,894 (6.84) | 2541 (13.67) | 60.02 (59.70, 60.34) | 49.43 (47.47, 51.39) | 0.65*** (0.60, 0.70) | 0.72*** (0.67, 0.78) |
*P < 0.05, **p < 0.01, ***p < 0.001.
aAdjusted for ethnicity, region, area-level deprivation, smoking status and BMI.
bAdjusted for age, region, area-level deprivation, smoking status and BMI.
cAdjusted for age, ethnicity, region, and smoking status and BMI.
dAdjusted for age, ethnicity, area-level deprivation, smoking status and BMI.
eAdjusted for age, ethnicity, region, area-level deprivation and BMI.
fAdjusted for age, region, ethnicity, area-level deprivation and smoking status.