Characteristic | Level | MCBCS Controls (n = 484) | SASBAC Controls (n = 726) | ||
---|---|---|---|---|---|
 |  | Mean | 95% CI | Mean | 95%CI |
Age, years | 40 to 49 | 23.6 | 18.3 to 28.9 | 8.2 | ------- |
 | 50 to 59 | 20.1 | 17.9 to 22.2 | 16.7 | 14.9 to 18.6 |
 | 60 to 69 | 18.2 | 16.1 to 20.2 | 13.7 | 12.4 to 15.1 |
 | 70+ | 16.4 | 14.0 to 18.8 | 12.0 | 9.5 to 14.5 |
Body mass index, kg/m2b | < 25 | 24.8 | 24.0 to 27.6 | 19.2 | 17.5 to 20.8 |
 | 25 to 30 | 16.0 | 14.2 to 17.9 | 11.2 | 10.0 to 12.5 |
 | > 30 | 10.6 | 8.2 to 13.0 | 6.8 | 5.1 to 8.5 |
 | Unknown | 15.9 | 10.2 to 21.5 | 10.5 | 3.9 to 17.2 |
Postmenopausal hormone usec | Current | 21.9 | 19.8 to 24.0 | 19.6 | 16.4 to 22.7 |
 | Former | 18.1 | 16.1 to 20.2 | 17.0 | 14.9 to 19.1 |
 | Never | 15.6 | 13.4 to 17.9 | 11.7 | 10.6 to 12.8 |
 | Unknown | 18.3 | 12.7 to 23.9 | 14.7 | 11.8 to 17.6 |