Table 4.
General Characteristics | Survey Year 1 | ptrend 2 | |||||||
---|---|---|---|---|---|---|---|---|---|
1991 | 1993 | 1997 | 2000 | 2004 | 2006 | 2009 | 2011 | ||
All | 65.8 ± 4.1 | 68.1 ± 4.1 | 69.1 ± 4.1 | 70.8 ± 4.1 | 72.9 ± 4.1 | 73.8 ± 4.1 | 74.8 ± 4.1 | 76.9 ± 4.1 | p < 0.0001 |
Age (year) | |||||||||
18–39 | 63.6 ± 4.0 | 67.1 ± 4.2 | 68.8 ± 4.3 | 70.5 ± 4.2 | 70.9 ± 4.2 | 71.1 ± 4.2 | 73.6 ± 4.2 | 74.0 ± 7.2 | p < 0.0001 |
40–60 | 66.4 ± 4.2 | 68.7 ± 4.1 | 69.3 ± 4.0 | 71.3 ± 4.0 | 75.1 ± 4.0 | 75.2 ± 4.0 | 76.1 ± 4.0 | 79.2 ± 4.0 | p < 0.0001 |
Sex | |||||||||
Male | 71.3 ± 4.2 | 74.6 ± 4.2 | 75.5 ± 4.2 | 78.0 ± 4.2 | 80.3 ± 4.2 | 80.6 ± 4.2 | 81.3 ± 4.2 | 84.4 ± 4.2 | p < 0.0001 |
Female | 60.4 ± 3.8 | 62.0 ± 3.8 | 62.9 ± 3.8 | 63.9 ± 3.8 | 65.9 ± 3.8 | 67.4 ± 3.8 | 68.6 ± 3.8 | 69.8 ± 3.8 | p < 0.0001 |
Region | |||||||||
North | 62.5 ± 2.7 | 65.3 ± 2.7 | 65.6 ± 2.7 | 66.9 ± 2.7 | 67.0 ± 2.7 | 68.3 ± 2.6 | 69.3 ± 2.6 | 70.4 ± 2.6 | p < 0.0001 |
Central | 57.8 ± 5.2 | 57.9 ± 5.2 | 61.7 ± 5.2 | 69.7 ± 5.1 | 71.5 ± 5.2 | 72.2 ± 5.2 | 72.8 ± 5.2 | 73.0 ± 5.2 | p < 0.0001 |
South | 75.2 ± 4.4 | 77.6 ± 4.4 | 78.5 ± 4.3 | 79.6 ± 4.4 | 79.8 ± 4.4 | 83.2 ± 4.4 | 83.4 ± 4.3 | 88.6 ± 4.4 | p < 0.0001 |
Income | |||||||||
Low | 56.2 ± 3.1 | 58.5 ± 3.1 | 62.3 ± 3.1 | 63.5 ± 3.1 | 68.5 ± 3.1 | 68.8 ± 3.1 | 70.4 ± 3.1 | 71.3 ± 3.1 | p < 0.0001 |
Medium | 64.6 ± 4.5 | 67.2 ± 4.5 | 68.4 ± 4.5 | 69.5 ± 4.5 | 72.9 ± 4.5 | 75.4 ± 4.5 | 75.5 ± 4.5 | 76.7 ± 4.5 | p < 0.0001 |
High | 72.5 ± 4.2 | 73.4 ± 4.2 | 76.9 ± 4.1 | 77.4 ± 4.1 | 77.7 ± 4.1 | 79.4 ± 4.1 | 81.9 ± 4.1 | 83.9 ± 4.1 | p < 0.0001 |
Urbanicity | |||||||||
Low | 55.3 ± 5.0 | 59.6 ± 5.0 | 59.7 ± 5.0 | 62.5 ± 5.0 | 62.9 ± 5.0 | 64.7 ± 5.0 | 66.1 ± 5.0 | 67.3 ± 5.0 | p < 0.0001 |
Medium | 59.9 ± 3.2 | 64.3 ± 3.2 | 65.0 ± 3.2 | 67.2 ± 3.2 | 74.1 ± 3.2 | 75.1 ± 3.1 | 77.4 ± 3.2 | 80.2 ± 3.2 | p < 0.0001 |
High | 71.0 ± 3.9 | 73.1 ± 3.9 | 76.6 ± 3.9 | 80.4 ± 3.9 | 81.7 ± 3.9 | 82.3 ± 3.9 | 84.7 ± 3.9 | 87.4 ± 3.9 | p < 0.0001 |
1 Mean ± SE (all such values). 2 Values adjusted for age, sex, region, income, and urbanicity.