Variables | 2003 to 2004 | 2005 to 2006 | 2007 to 2008 | 2009 to 2010 |
Sex N (%) | ||||
Male | 2130 (48.4) | 2112 (49.9) | 2206 (48.8) | 2729 (48.2) |
Female | 2272 (51.6) | 2297 (52.1) | 2318 (51.2) | 2931 (51.8) |
Race N (%) | ||||
Mexican American | 881 (20) | 901 (20.4) | 792 (17.5) | 1049 (18.5) |
Hispanic | 134 (3) | 136 (3.1) | 515 (11.4) | 577 (10.2) |
Non-Hispanic white | 2359 (53.6) | 2228 (50.5) | 2209 (48.8) | 2751 (48.6) |
Non-Hispanic black | 836 (19) | 975 (22.1) | 833 (18.4) | 968 (17.1) |
Other | 192 (4.4) | 169 (3.8) | 175 (3.9) | 315 (5.6) |
Age (years) M (±SD) | 50.4 (19.4) | 48.1 (18.7) | 50.9 (17.8) | 49.3 (17.7) |
25OHD (nmol/L) M (±SD) | 58.7 (24.0) | 57.1 (21.0) | 57.5 (24.4) | 60.1 (25.8 |
HbA1c (%) M (±SD) | 5.6 (0.96) | 5.6 (1.0) | 5.8 (1.0) | 5.7 (1.0) |
BMI (kg/m2) M (±SD) | 28.4 (6.3) | 28.8 (6.8) | 29.0 (6.6) | 29.2 (6.8) |
BMI, body mass index; HbA1c, haemoglobin A1c; NHANES, National Health and Nutrition Examination Survey; 25OHD, 25-hydroxyvitamin D.