Table 1.
Sample distribution by sleep quality, duration, and other study variables.
| Mortality analysis sample
|
Health analysis sample
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Women | Men | Ages 65–79 | Ages 80+ | Total | Women | Men | Ages 65–79 | Ages 80+ | Total | |
| Sample size | 7250 | 5421 | 4057 | 8.614 | 12,671 | 4119 | 3353 | 3575 | 3897 | 7472 |
| % Good sleep | 60.7 | 68.3 | 65.1 | 63.4 | 63.9 (65.0) | 61.0 | 71.1 | 65.6 | 65.4 | 65.5 (65.7) |
| % Fair sleep | 27.5 | 22.7 | 23.0 | 26.6 | 25.5 (23.1) | 26.8 | 21.3 | 22.9 | 25.6 | 24.3 (22.9) |
| % Poor sleep | 11.8 | 9.0 | 11.9 | 10.0 | 10.6 (11.9) | 12.2 | 7.6 | 11.5 | 9.0 | 10.2 (11.4) |
| % Sleeping hours 5 or less | 13.2 | 11.8 | 13.4 | 12.2 | 12.6 (13.4) | 14.1 | 11.0 | 13.2 | 12.3 | 12.7 (15.0) |
| % Sleeping hours 6 | 15.3 | 14.0 | 16.2 | 14.1 | 14.7 (16.1) | 15.5 | 14.3 | 16.3 | 13.8 | 15.0 (17.6) |
| % Sleeping hours 7 | 13.6 | 14.3 | 18.8 | 11.5 | 13.9 (18.4) | 16.0 | 15.6 | 19.0 | 12.9 | 15.8 (19.3) |
| % Sleeping hours 8 | 20.9 | 25.1 | 28.1 | 20.3 | 22.8 (27.8) | 23.2 | 28.8 | 28.5 | 23.0 | 25.6 (26.0) |
| % Sleeping hours 9 | 6.9 | 8.6 | 9.0 | 7.0 | 7.6 (9.1) | 7.8 | 9.7 | 9.2 | 8.2 | 8.7 (7.7) |
| % Sleeping hours 10 or more | 30.1 | 26.0 | 14.5 | 34.9 | 28.4 (15.2) | 23.4 | 20.7 | 13.8 | 29.8 | 22.2 (14.4) |
| Average sleeping hours per day | 8.1 | 8.0 | 7.4 | 8.4 | 8.1 (7.5) | 7.7 | 7.8 | 7.4 | 8.1 | 7.8 (7.4) |
| % Death | 43.2 | 38.1 | 11.9 | 54.8 | 41.0 (13.5) | – | – | – | – | – |
| Mean score of cumulative health deficit index in 2008 | – | – | – | – | – | 0.24 | 0.18 | 0.13 | 0.29 | 0.22 (0.14) |
| Mean Age | 88.1 | 83.4 | 71.8 | 92.8 | 86.1 (72.5) | 82.8 | 79.4 | 71.6 | 90.2 | 81.3 (71.9) |
| % Urban | 40.8 | 42.1 | 40.4 | 41.8 | 42.4 (39.1) | 40.7 | 41.9 | 40.5 | 42.0 | 41.3 (39.1) |
| % Han ethnicity | 92.7 | 93.3 | 93.7 | 92.6 | 93.0 (93.6) | 92.7 | 93.4 | 93.7 | 92.5 | 93.1 (93.6) |
| % 1 + years of schooling | 17.8 | 64.2 | 54.4 | 29.8 | 37.7 (52.6) | 22.3 | 67.8 | 53.6 | 31.9 | 42.8 (53.5) |
| % Good family economic condition | 14.0 | 17.4 | 15.3 | 15.6 | 15.5 (15.0) | 14.5 | 18.7 | 15.2 | 17.4 | 16.4 (15.2) |
| % Got adequate medical service | 86.9 | 89.4 | 90.0 | 87.0 | 88.0 (90.0) | 88.4 | 90.8 | 90.4 | 88.6 | 89.5 (90.6) |
| % Married | 18.6 | 50.8 | 64.5 | 17.2 | 32.4 (61.9) | 27.5 | 60.8 | 65.0 | 21.8 | 42.5 (63.2) |
| Average No. of living children | 3.5 | 3.7 | 3.9 | 3.4 | 3.6 (3.9) | 3.7 | 3.8 | 3.9 | 3.6 | 3.7 (3.9) |
| % Current smoker | 7.1 | 36.2 | 28.7 | 15.2 | 19.7 (27.7) | 7.9 | 40.5 | 28.9 | 16.8 | 22.6 (28.1) |
| % Current alcohol consumer | 11.3 | 32.7 | 24.6 | 18.5 | 20.4 (24.4) | 11.3 | 36.1 | 25.1 | 20.0 | 22.4 (25.0) |
| Mean score of cumulative health deficit index in 2005 | 0.24 | 0.16 | 0.10 | 0.26 | 0.21 (0.10) | 0.17 | 0.12 | 0.09 | 0.19 | 0.14 (0.09) |
| % North | 5.5 | 5.7 | 5.8 | 5.5 | 5.6 (5.7) | 5.4 | 6.2 | 5.9 | 5.6 | 5.8 (5.9) |
| % Northeast | 7.6 | 9.8 | 10.5 | 7.6 | 8.5 (11.1) | 8.4 | 9.8 | 10.6 | 7.8 | 9.1 (10.4) |
| % East | 36.4 | 37.1 | 36.8 | 36.7 | 36.7 (36.8) | 36.5 | 36.8 | 36.9 | 36.4 | 36.7 (36.7) |
| % Central/South | 34.8 | 32.0 | 31.7 | 34.5 | 33.6 (31.9) | 34.5 | 31.8 | 31.5 | 34.9 | 33.3 (31.8) |
| % West | 15.7 | 15.4 | 15.3 | 15.7 | 15.6 (15.5) | 15.2 | 15.3 | 15.2 | 15.3 | 15.3 (15.3) |
| % Live alone | 14.5 | 12.1 | 12.6 | 13.9 | 13.5 (12.6) | 16.2 | 11.6 | 12.7 | 15.4 | 14.1 (12.5) |
| % Live with spouse or family | 83.0 | 85.6 | 86.4 | 83.0 | 84.1 (86.3) | 92.0 | 86.7 | 86.4 | 82.0 | 84.1 (86.6) |
| % Live in an institution | 2.5 | 2.4 | 1.0 | 3.1 | 2.5 (1.1) | 1.9 | 1.8 | 0.9 | 2.6 | 1.8 (0.9) |
Note: (1) numbers in the parentheses are weighted, while all others are unweighted. (2) All variables are measured at the 2005 wave unless otherwise stated.