Table 3.
General Characteristics | Survey Year 1 | ptrend 2 | |||||||
---|---|---|---|---|---|---|---|---|---|
1991 | 1993 | 1997 | 2000 | 2004 | 2006 | 2009 | 2011 | ||
All | 394.8 ± 7.6 | 372.2 ± 7.7 | 363.6 ± 7.6 | 363.2 ± 7.6 | 361.6 ± 7.6 | 353.8 ± 7.6 | 332.7 ± 7.6 | 319.4 ± 7.7 | p < 0.0001 |
Age (year) | |||||||||
18–39 | 403.7 ± 7.0 | 382.6 ± 7.0 | 371.8 ± 7.0 | 367.9 ± 6.9 | 367.2 ± 7.1 | 353.3 ± 7.1 | 332.6 ± 7.2 | 328.2 ± 7.4 | p < 0.0001 |
40–60 | 386.9 ± 11.6 | 360.5 ± 11.7 | 359.4 ± 11.7 | 356.5 ± 11.6 | 355.0 ± 11.7 | 353.4 ± 11.6 | 332.6 ± 11.6 | 314.9 ± 11.6 | p < 0.0001 |
Sex | |||||||||
Male | 428.5 ± 8.2 | 394.8 ± 8.2 | 392.0 ± 8.2 | 387.2 ± 8.3 | 384.2 ± 8.3 | 379.5 ± 8.3 | 361.7 ± 8.3 | 353.4 ± 8.4 | p < 0.0001 |
Female | 362.9 ± 7.8 | 361.4 ± 7.8 | 348.9 ± 7.8 | 334.8 ± 7.8 | 333.3 ± 7.8 | 323.0 ± 7.8 | 306.1 ± 7.8 | 288.5 ± 7.9 | p < 0.0001 |
Region | |||||||||
North | 397.6 ± 5.5 | 375.5 ± 4.7 | 370.4 ± 4.6 | 335.3 ± 4.2 | 330.8 ± 4.2 | 330.6 ± 4.2 | 320.0 ± 4.3 | 304.4 ± 4.5 | p < 0.0001 |
Central | 403.5 ± 4.8 | 392.8 ± 5.6 | 384.7 ± 5.8 | 382.8 ± 5.7 | 382.2 ± 5.7 | 375.5 ± 5.6 | 375.0 ± 5.8 | 356.2 ± 6.0 | p < 0.0001 |
South | 395.5 ± 14.9 | 363.0 ± 15.0 | 354.5 ± 14.9 | 346.4 ± 15.0 | 345.9 ± 14.9 | 339.1 ± 15.0 | 308.7 ± 15.0 | 304.8 ± 15.0 | p < 0.0001 |
Income | |||||||||
Low | 431.6 ± 10.4 | 392.7 ± 10.5 | 390.6 ± 10.4 | 384.4 ± 10.3 | 381.6 ± 10.4 | 381.0 ± 10.4 | 343.3 ± 10.5 | 327.7 ± 10.6 | p < 0.0001 |
Medium | 404.4 ± 10.1 | 381.8 ± 10.1 | 371.3 ± 10.1 | 367.0 ± 10.1 | 366.7 ± 10.0 | 363.9 ± 10.1 | 334.6 ± 10.1 | 323.2 ± 10.2 | p < 0.0001 |
High | 365.5 ± 6.6 | 358.1 ± 6.7 | 349.7 ± 6.6 | 343.9 ± 6.7 | 343.6 ± 6.6 | 323.2 ± 6.6 | 318.4 ± 6.6 | 301.7 ± 6.7 | p < 0.0001 |
Urbanicity | |||||||||
Low | 445.6 ± 18.0 | 409.5 ± 18.0 | 404.5 ± 18.0 | 388.7 ± 18.0 | 384.7 ± 18.0 | 378.3 ± 18.0 | 341.7 ± 18.0 | 329.4 ± 18.1 | p < 0.0001 |
Medium | 416.6 ± 11.7 | 404.0 ± 11.7 | 380.4 ± 11.7 | 377.7 ± 11.7 | 374.4 ± 11.6 | 360.1 ± 11.7 | 336.3 ± 11.7 | 297.8 ± 11.8 | p < 0.0001 |
High | 376.7 ± 10.2 | 368.1 ± 10.1 | 362.9 ± 10.2 | 332.0 ± 10.1 | 329.9 ± 10.1 | 305.0 ± 10.1 | 289.8 ± 10.1 | 286.3 ± 10.2 | p < 0.0001 |
1 Mean ± SE (all such values). 2 Values adjusted for age, sex, region, income, and urbanicity.