Table 1 Characteristics of the 45 and Up Study sample and association of variables with SMC, N = 45, 532
| Total |
SMC (n, column %) |
No SMC (n, column %) | Odds ratio (95% CI) | |
|---|---|---|---|---|
| N | 45, 532 | 5, 479 (12.0%) | 40, 053 (88.0%) | |
| Demographics | ||||
| Age | ||||
| -45 to 49 years | 9, 582 | 1, 152 (21.0%) | 8, 430 (21.0%) | 1.00 |
| -50 to 54 years | 12, 237 | 1, 441 (26.3%) | 10, 796 (27.0%) | 0.98 (0.90 - 1.06) |
| -55 to 59 years | 12, 712 | 1, 510 (27.6%) | 11, 202 (28.0%) | 0.99 (0.91 - 1.07) |
| -60 to 64 years | 11, 001 | 1, 376 (25.1%) | 9, 625 (24.0%) | 1.05 (0.96 - 1.14) |
| Gender | ||||
| -Male | 20, 606 | 2, 674 (48.8%) | 17, 932 (44.8%) | 1.18 (1.11 - 1.24)* |
| -Female | 24, 926 | 2, 805 (51.2%) | 22, 121 (55.2%) | |
| Education | ||||
| -High | 13, 743 | 1, 071 (19.5%) | 12, 672 (31.6%) | 1.00 |
| -Medium | 19, 856 | 2, 462 (44.9%) | 17, 394 (43.4%) | 1.68 (1.55 - 1.81)* |
| -Low | 11, 933 | 1, 946 (35.5%) | 9, 987 (24.9%) | 2.31 (2.13 - 2.50)* |
| Vascular risk factors | ||||
| Obesity | 10, 147 | 1, 306 (23.8%) | 8, 841 (22.1%) | 1.11 (1.03 - 1.18) |
| -non-obesity | 35, 385 | 4, 173 (76.2%) | 31, 212 (77.9%) | |
| Diabetes | 2, 475 | 379 (6.9%) | 2, 096 (5.2%) | 1.35 (1.20 - 1.51)* |
| -no diabetes | 43, 057 | 5, 100 (93.1%) | 37, 957 (94.8%) | |
| Current smoker | 3, 928 | 607 (11.1%) | 3, 321 (8.3%) | 1.38 (1.26 - 1.51)* |
| -non-smoker | 41, 604 | 4, 872 (88.9%) | 36, 732 (91.7%) | |
| Treatment for hypertension | 7, 338 | 928 (16.9%) | 6, 410 (16.0%) | 1.07 (0.99 - 1.15) |
| -no treatment for hypertension | 38, 194 | 4, 551 (83.1%) | 33, 643 (84.0%) | |
| Treatment for hypercholesterolaemia | 4, 892 | 692 (12.6%) | 4, 200 (10.5%) | 1.23 (1.13 - 1.35)* |
| -no treatment for hypercholesterolaemia | 40, 640 | 4, 787 (87.4%) | 35, 853 (89.5%) | |
| Psychological distress | ||||
| K10-low level of distress | 35, 713 | 3, 139 (57.3%) | 32, 574 (81.3%) | 1.00 |
| - moderate level of distress | 9, 344 | 2, 138 (39.0%) | 7, 206 (18.0%) | 3.08 (2.90 - 3.27)* |
| - severe level of distress | 475 | 202 (3.7%) | 273 (0.7%) | 7.68 (6.38 - 9.24)* |
