Summary statistics for 1477 participants in wave 1 of ALSA
| Characteristic | Number* | Overall (n = 1477) | Survivors (n = 570) | Decedents (n = 907) |
|---|---|---|---|---|
| * Denominator in % is count of non-missing observations for each variable. If more than 74 (5%) observations were missing for a variable, then a category of missing was added to ensure cases with missing observations were included in the analyses. | ||||
| Social networks mean (95%CI) | ||||
| Children | 1477 | 0.00 (−0.04 to 0.04) | 0.08 (0.01 to 0.14) | −0.04 (−0.10 to 0.01) |
| Relatives | 1477 | 0.00 (−0.04 to 0.04) | 0.11 (0.04 to 0.17) | −0.06 (−0.11 to −0.01) |
| Friends | 1477 | 0.01 (−0.03 to 0.05) | 0.19 (0.13 to 0.25) | −0.11 (−0.16 to −0.06) |
| Confidants | 1477 | 0.01 (−0.03 to 0.05) | 0.10 (0.04 to 0.16) | −0.04 (−0.09 to 0.00) |
| Total | 1477 | 0.02 (−0.06 to 0.11) | 0.48 (0.34 to 0.61) | −0.26 (−0.37 to 0.15) |
| Social networks tertile cut off points | ||||
| Children 0th, 33⅓rd, 66⅔rd, 100th | 1477 | −1.67, −0.02, 0.48, 1.17 | −1.67, −0.02, 0.49, 1.17 | −1.67, −0.11, 0.47, 1.17 |
| Relatives 0th, 33⅓rd, 66⅔rd, 100th | 1477 | −1.05,−0.53, 0.37, 2.02 | −1.05,−0.33, 0.47, 2.02 | −1.05,−0.53, 0.23, 2.02 |
| Friends 0th, 33⅓rd, 66⅔rd, 100th | 1477 | −1.54, −0.33, 0.46, 1.19 | −1.54, −0.06, 0.61, 1.19 | −1.54, −0.42, 0.32, 1.19 |
| Confidants 0th, 33⅓rd, 66⅔rd, 100th | 1477 | −1.68, 0.07, 0.09, 0.77 | −1.68, 0.09, 0.77, 0.77 | −1.68, 0.07, 0.09, 0.77 |
| Total 0th, 33⅓rd, 66⅔rd, 100th | −5.69, −0.63, 0.84, 4.97 | −5.41, −0.08, 1.22, 4.63 | −5.69, −0.99, 0.51, 4.97 | |
| Age mean (95%CI) | 1477 | 79.8 (79.4 to 80.1) | 76.2 (75.8 to 76.7) | 82.0 (81.6 to 82.4) |
| Sex male n (%) | 1477 | 928 (62.8) | 326 (57.2) | 602 (66.4) |
| Place of residence community n (%) | 1477 | 1340 (91.3) | 554 (97.2) | 786 (86.7) |
| Marital status married n (%) | 1477 | 771 (52.2) | 330 (57.9) | 441 (48.6) |
| Age left school ⩽14 years n (%) | 1463 | 830 (56.7) | 306 (53.8) | 524 (58.6) |
| Household income ⩽$12000 n (%)* | 1369 | 590 (39.9) | 212 (37.2) | 378 (41.7) |
| Number of morbid conditions median (95%CI) | 1477 | 1 (1 to 2) | 1 (1 to 1) | 1 (1–2) |
| Mobility disability | 1455 | 506 (34.8) | 113 (19.9) | 393 (44.3) |
| Cognitive function poor n (%) | 1440 | 219 (15.2) | 36 (6.4) | 183 (20.9) |
| Self rated health fair/poor n (%) | 1472 | 469 (31.8) | 116 (20.4) | 353 (38.9) |
| Depressive symptoms n (%)* | 1400 | 219 (14.8) | 59 (10.4) | 160 (18.6) |
| Hearing difficulty n (%) | 1472 | 746 (50.7) | 253 (44.4) | 493 (54.7) |
| Vision difficulty n (%) | 1410 | 375 (26.6) | 92 (16.7) | 283 (32.9) |
| Alcohol problem n (%) | 1466 | 65 (4.4) | 28 (4.9) | 37 (4.1) |
| Current smoker n (%) | 1461 | 123 (8.4) | 31 (5.4) | 92 (10.3) |
| Former smoker n (%) | 1461 | 677 (46.3) | 253 (44.5) | 424 (47.5) |
| Pack years of smoking for current/former smokers (median, 95%CI) | 800 | 30.4 (27.7 to 32.4) | 26.5 (21.5 to 30.4) | 31.8 (29.2 to 35.4) |
| Sedentary n (%)* | 1457 | 663 (45.5) | 214 (37.6) | 449 (50.6) |