Table 2. Mortality Characteristics Overall and by AMD Statusa.
| Characteristics | All Participants (N = 5603) | AMD Statusb | |||
|---|---|---|---|---|---|
| None (n = 5162) | Any (n = 441) | Early (n = 386) | Late (n = 55) | ||
| Age at death, mean (SE), y | |||||
| Due to all causes | 72.6 (0.9) | 70.9 (1.0) | 81.3 (1.1)c | 80.4 (1.4)c | 83.1 (1.7)c |
| Due to CVD | 73.8 (1.3) | 72.8 (1.4) | 79.1 (3.0) | 77.9 (3.5) | 83.7 (3.5)d |
| Due to cancer | 70.9 (1.1) | 70.0 (1.3) | 78.4 (2.9)d | 77.1 (3.3) | 84.8 (1.9)c |
| Due to non-CVD and noncancer causes | 72.9 (1.3) | 70.3 (1.3) | 82.9 (1.1)c | 83.0 (1.4)c | 82.8 (1.6)c |
| Mortality rate, No. (%) | |||||
| Due to all causes | 433 (5.3) | 361 (4.7) | 72 (13.6)c | 54 (10.6)d | 18 (35.9)d |
| Due to CVD | 117 (1.4) | 102 (1.2) | 15 (3.3)c | 12 (3.0)d | 3 (5.4)d |
| Due to cancer | 105 (1.3) | 92 (1.3) | 13 (2.2)c | 11 (2.1)d | 2 (2.9)d |
| Due to non-CVD and noncancer causes | 211 (2.6) | 167 (2.2) | 44 (8.2)c | 31 (5.5)d | 13 (27.6)d |
| Time to death from baseline examination, mean (SE), mo | |||||
| Due to all causes | 32.8 (1.0) | 32.4 (1.2) | 34.6 (2.1) | 34.0 (2.5) | 35.9 (5.4) |
| Due to CVD | 31.1 (1.5) | 30.0 (1.8) | 36.8 (4.9) | 30.0 (3.5) | 64.4 (4.4)c |
| Due to cancer | 35.6 (2.0) | 36.0 (2.1) | 32.2 (2.8) | 32.2 (3.3) | 32.0 (2.4) |
| Due to non-CVD and noncancer causes | 32.2 (1.3) | 31.7 (1.7) | 34.4 (2.8) | 36.9 (3.9) | 30.8 (4.8) |
Abbreviations: AMD, age-related macular degeneration; CVD, cardiovascular disease.
a
Mortality was assessed through December 31, 2011. All proportions, means, and SEs are weighted estimates of the US population characteristics, taking into account the complex sampling design of the National Health and Nutrition Examination Survey.
b
All P values were calculated using the unpaired t test for continuous variables and the design-adjusted Rao-Scott Pearson χ2 test for categorical variables. Comparisons were between each group with AMD and the group with no AMD and were unadjusted.
c
P < .001.
d
P < .05.