Table 1 Cohort characteristics
| Â | Cuba | Dominican Republic | Peru (urban) | Peru (rural) | Venezuela | Mexico (urban) | Mexico (rural) | China (urban) | China (rural) | India (urban) | All centres combined |
|---|---|---|---|---|---|---|---|---|---|---|---|
MORTALITY COHORT | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Baseline sample (alive at baseline) | 2813 | 2011 | 1381 | 552 | 1997 | 1003 | 1000 | 1160 | 1002 | 1005 | 13924 |
Vital status determined (% of baseline sample) | 2637 (93.7 %) | 1706 (84.8 %) | 1245 (90.2 %) | 507 (91.8 %) | 1697 (84.5 %) | 909 (90.6 %) | 933 (93.3 %) | 989 (85.2 %) | 1002 (100.0 %) | 748 (74.4 %) | 12373 (88.9 %) |
Deaths (% of those with vital status determined) | 609 (23.1 %) | 467 (27.4 %) | 98 (7.9 %) | 54 (10.6 %) | 200 (11.8 %) | 99 (10.9 %) | 110 (11.8 %) | 224 (22.6 %) | 291 (29.0 %) | 154 (20.6 %) | 2306 (18.6 %) |
Person years of follow-up | 10852.5 | 7448.6 | 3592.7 | 1764.1 | 7031.1 | 2667.1 | 2689.3 | 4630.6 | 4563.3 | 2198.7 | 47437.9 |
Mortality rate (per 1000 person-years) | 56.1 (51.8–60.7) | 62.7 (57.2–68.6) | 27.3 (22.3 –33.1) | 30.6 (23.2–39.6) | 28.4 (24.7–32.6) | 37.1 (30.3–45.0) | 40.9 (33.8–49.1) | 48.4 (42.3–55.0) | 63.8 (56.8–71.4) | 70.0 (59.6–81.8) | 56.1 (51.8–60.7) |
Median years of follow-up (25th and 75th centile) | 4.2 (3.5–5.0) | 5.0 (3.6–5.1) | 2.8 (2.4–3.4) | 3.7 (3.6–3.8) | 4.2 (4.0–4.8) | 3.0 (2.9–3.2) | 3.0 (2.9–3.1) | 4.9 (4.6–5.3) | 4.9 (4.4–5.2) | 2.9 (2.5–3.6) | 3.9 (3.0–4.9) |
Mean age at baseline (SD) | 75.2 (7.1) | 75.4 (7.6) | 75.0 (7.4) | 74.1 (7.3) | 72.3 (6.8) | 74.4 (6.6) | 74.1 (6.6) | 74.1 (6.3) | 72.4 (6.0) | 71.4 (6.1) | 74.1 (7.0) |
Female sex (%) | 1714 (65.0 %) | 1130 (66.3 %) | 805 (64.7 %) | 270 (53.2 %) | 1072 (63.2 %) | 605 (66.5 %) | 569 (60.9 %) | 560 (56.6 %) | 556 (55.5 %) | 422 (57.2 %) | 7703 (62.3 %) |
Did not complete primary education (%) | 661 (25.1 %) | 1211 (71.7 %) | 114 (9.2 %) | 206 (41.3 %) | 499 (30.0 %) | 530 (58.4 %) | 787 (84.2 %) | 346 (35.0 %) | 693 (69.2 %) | 492 (66.0 %) | 5539 (45.1 %) |
Fried frailty model | 554 (21.0 %) | 591 (34.6 %) | 323 (25.9 %) | 87 (17.2 %) | 187 (11.0 %) | 92 (10.1 %) | 79 (8.5 %) | 77 (7.8 %) | 87 (8.7 %) | 85 (11.4 %) | 2162 (17.5 %) |
Multidimensional frailty model | 889 (33.7 %) | 816 (47.8 %) | 351 (28.2 %) | 130 (25.6 %) | 340 (20.0 %) | 208 (22.9 %) | 338 (36.2 %) | 112 (11.3 %) | 225 (22.5 %) | 195 (26.1 %) | 3604 (29.1 %) |
DEPENDENCE COHORT | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Baseline sample (no needs for care at baseline) | 2225 | 1770 | 1246 | 524 | 1754 | 889 | 918 | 977 | 948 | Â | 11251 |
Re-interviewed (% of baseline sample) | 1662 (74.7 %) | 1144 (64.6 %) | 830 (66.6 %) | 399 (76.1 %) | 1154 (65.8 %) | 688 (77.4 %) | 664 (72.3 %) | 671 (68.7 %) | 698 (73.6 %) | – | 7910 (70.3 %) |
Incident dependence (% of those re-interviewed) | 233 (14.0 %) | 242 (21.2 %) | 95 (11.4 %) | 38 (9.5 %) | 181 (15.7 %) | 90 (13.1 %) | 90 (13.6 %) | 151 (22.5 %) | 74 (10.6 %) | – | 1194 (15.1 %) |
Person years of follow-up | 7031.6 | 5002.0 | 2317.1 | 1414.5 | 4702.4 | 1979.3 | 1900.4 | 3020.7 | 3320.7 | – | 30688.8 |
Incidence rate (per 1000 person-years) | 33.1 (29.1–37.6) | 48.4 (42.6–54.8) | 41.0 (33.4–49.9) | 26.9 (19.3–36.5) | 38.5 (33.2–44.4) | 45.5 (36.8–55.6) | 47.4 (38.3–57.9) | 50.0 (42.5–58.5) | 22.3 (17.6–27.8) | – | 38.9 (36.7–41.2) |
Median years of follow-up (25th and 75th centile) | 4.3 (3.6–5.1) | 5.0 (4.8–5.2) | 2.8 (2.4–3.2) | 3.7 (3.6–3.7) | 4.2 (4.0–4.7) | 3.0 (2.9–3.2) | 3.0 (2.9–3.1) | 4.9 (4.4–5.3) | 4.9 (4.7–5.3) | – | 4.0 (3.0–4.9) |
Mean age at baseline (SD) | 73.5 (6.2) | 73.6 (6.6) | 74.1 (6.8) | 73.2 (6.7) | 71.1 (5.8) | 73.4 (6.0) | 73.5 (6.3) | 72.4 (5.3) | 71.0 (5.1) | – | 72.9 (6.2) |
Female sex (%) | 1074 (64.6 %) | 784 (68.7 %) | 545 (65.7 %) | 213 (53.4 %) | 742 (64.3 %) | 453 (65.8 %) | 412 (62.0 %) | 395 (58.9 %) | 397 (56.9 %) | – | 5015 (63.4 %) |
Did not complete primary education (%) | 356 (21.4 %) | 797 (69.9 %) | 69 (8.4 %) | 153 (38.9 %) | 302 (26.3 %) | 379 (55.3 %) | 549 (82.6 %) | 226 (33.7 %) | 467 (66.9 %) | – | 3298 (41.8 %) |
Fried frailty model | 258 (15.5 %) | 347 (30.3 %) | 185 (22.3 %) | 58 (14.5 %) | 89 (7.7 %) | 57 (8.3 %) | 37 (5.6 %) | 5 (0.7 %) | 33 (4.7 %) | – | 1069 (13.5 %) |
Multidimensional frailty model | 397 (23.9 %) | 457 (39.9 %) | 181 (21.8 %) | 84 (21.1 %) | 182 (15.8 %) | 121 (17.6 %) | 221 (33.3 %) | 23 (3.4 %) | 115 (16.5 %) | – | 1781 (22.5 %) |