Table 2.
1991 |
1993 |
1997 |
2000 |
2004 |
2006 |
2009 |
2011 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean | SE | Mean | SE | Mean | SE | Mean | SE | Mean | SE | Mean | SE | Mean | SE | Mean | SE | p Value* | |
All | 189.8 | 6.5 | 194.6 | 6.4 | 223.2 | 3.9 | 226.7 | 5.7 | 242.7 | 4.2 | 244.4 | 5.5 | 252.5 | 5.5 | 253.9 | 4.8 | <0.0001 |
Age group (years) | |||||||||||||||||
60–70 | 195.4 | 8.3 | 200.7 | 7.9 | 230.3 | 7.2 | 233.3 | 5.3 | 246.8 | 5.8 | 250.8 | 6.9 | 256.1 | 7.2 | 257.7 | 6.4 | <0.0001 |
70–80 | 186.9 | 12.2 | 189.5 | 11.9 | 217.4 | 11.4 | 219.5 | 6.5 | 238.7 | 6.9 | 240.5 | 10.4 | 248.7 | 9.7 | 250.1 | 8.1 | <0.0001 |
80+ | 145.8 | 19.2 | 157.1 | 20.7 | 189.1 | 15.6 | 203.6 | 11.9 | 230.4 | 19.1 | 217.9 | 13.5 | 244.4 | 15.5 | 245.2 | 17.7 | <0.0001 |
Gender | |||||||||||||||||
Male | 207.3 | 9.9 | 219.0 | 9.9 | 241.9 | 6.0 | 242.6 | 9.2 | 258.7 | 6.7 | 259.5 | 8.5 | 265.7 | 8.3 | 268.2 | 7.1 | <0.0001 |
Female | 173.4 | 8.6 | 172.7 | 8.1 | 207.2 | 5.1 | 213.1 | 7.0 | 228.3 | 5.2 | 231.0 | 7.2 | 240.5 | 7.3 | 241.2 | 6.4 | <0.0001 |
Income level | |||||||||||||||||
Low | 140.0 | 9.9 | 143.3 | 10.0 | 190.9 | 8.3 | 193.5 | 6.3 | 209.1 | 9.6 | 211.9 | 10.4 | 216.3 | 8.6 | 218.0 | 7.6 | <0.0001 |
Medium | 198.5 | 12.4 | 205.5 | 9.4 | 222.0 | 9.4 | 225.8 | 6.2 | 242.4 | 9.1 | 242.8 | 7.1 | 247.1 | 7.5 | 248.6 | 10.0 | <0.0001 |
High | 229.7 | 11.3 | 234.7 | 13.0 | 255.3 | 10.2 | 259.4 | 8.0 | 275.4 | 7.5 | 280.3 | 10.3 | 293.5 | 8.5 | 295.1 | 9.5 | <0.0001 |
Urbanicity index | |||||||||||||||||
Low | 107.1 | 8.0 | 113.9 | 9.3 | 144.8 | 7.6 | 153.1 | 7.5 | 166.1 | 8.0 | 169.4 | 6.1 | 182.6 | 7.2 | 184.5 | 8.0 | <0.0001 |
Medium | 183.2 | 10.9 | 189.3 | 10.9 | 240.5 | 6.1 | 244.3 | 9.5 | 253.4 | 7.6 | 254.3 | 9.1 | 255.8 | 8.5 | 256.4 | 9.7 | <0.0001 |
High | 277.6 | 8.3 | 280.4 | 12.9 | 282.6 | 6.6 | 283.1 | 11.8 | 308.2 | 10.9 | 309.5 | 7.7 | 318.2 | 10.1 | 320.6 | 10.1 | <0.0001 |
*Analysis of variance; results were considered to be significant when p<0.05.