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Table 2 Dependence cohort characteristics

From: Healthy ageing and the prediction of mortality and incidence dependence in low- and middle- income countries: a 10/66 population-based cohort study

Dependence CohortCubaDominican RepublicMexicoPeruPuerto RicoVenezuelaTotal
Baseline sample (no needs for care at baseline)22251770180717701714175411,040
Follow-up tracing
 Interviewed (% of baseline sample)1679 (75.5%)1103 (62.3%)1352 (74.8%)1234 (69.7%)1174 (68.5%)1154 (65.8%)7696 (69.7%)
 Deceased (% of baseline sample)386 (17.3%)345 (19.5%)159 (8.8%)97 (5.5%)176 (10.3%)139 (7.9%)1302 (11.8%)
 Refused (% of baseline sample)12 (0.5%)39 (2.2%)164 (9.1%)273 (15.4%)5 (0.3%)217 (12.4%)710 (6.4%)
 Lost (% of baseline sample)148 (6.7%)283 (16.0%)132 (7.3%)166 (9.4%)359 (20.9%)244 (13.9%)1332 (12.1%)
 Participants contribute to competing risk analysis (% of baseline sample)2065 (92.8%)1448 (81.8%)1511 (83.6%)1331 (75.2%)1350 (78.8%)1293 (73.7%)8998 (81.5%)
 Incidence dependencea271 (13.1%)376 (26.0%)209 (13.8%)156 (11.7%)276 (20.4%)238 (18.4%)1526 (17.0%)
 Competing risk (dependence free death)78 (3.8%)202 (14.0%)66 (4.4%)55 (4.1%)116 (8.6%)80 (6.2%)597 (6.6%)
 Person-years at risk for competing risk analysis (divided by two for incident dependence)8106.65800.94132.93928.251964944.132,108.7
 Incidence rate per 1000 person-years33.464.850.639.753.148.147.5
 Median person-years at risk for competing risk analysis (25th and 75th centile)4.1 (3.2–4.9)4.9 (2.5–5.1)3.0 (2.8–3.1)3.0 (2.4–3.7)4.2 (2.9–4.6)4.2 (3.5–4.6)3.7 (2.7–4.6)
For those contributing in competing risk analysis
 Mean age at baseline (SD)74.4 (6.6)74.5 (7.0)73.9 (6.4)74.3 (7.1)75.2 (6.5)71.5 (6.1)74.0 (6.7)
 Female Sex (%)1296 (62.8%)949 (65.5%)957 (63.3%)802 (60.3%)903 (66.9%)808 (62.5%)5715 (63.5%)
 None or did not complete primary education (%)479 (23.2%)1028 (71.0%)1051 (69.6%)256 (19.2%)265 (19.6%)363 (28.1%)3442 (38.3%)
 Median number of assets (25th–75th centile)6.0 (5.0–6.0)5.0 (4.0–6.0)6.0 (4.0–6.0)6.0 (5.0–6.0)7.0 (7.0–7.0)6.0 (6.0–7.0)6.0 (5.0–7.0)
 No limiting physical impairment (%)918 (44.5%)448 (30.9%)654 (43.3%)614 (46.1%)517 (38.3%)520 (40.2%)3671 (40.8%)
 No stroke (%)1945 (94.2%)1347 (93.0%)1432 (94.8%)1279 (96.1%)1271 (94.1%)1231 (95.2%)8505 (94.5%)
 No ICD10 depressive episode (%)1993 (96.5%)1269 (87.6%)1456 (96.4%)1273 (95.6%)1325 (98.1%)1241 (96.0%)8557 (95.1%)
 No dementia (%)1969 (95.4%)1323 (91.4%)1426 (94.4%)1270 (95.4%)1299 (96.2%)1259 (97.4%)8546 (95.0%)
 Q1 of healthy ageing (highest level)477 (23.1%)148 (10.2%)196 (13.0%)324 (24.3%)242 (17.9%)409 (31.6%)1796 (20.0%)
 Self-rated health: very good236 (11.4%)207 (14.3%)299 (19.8%)284 (21.3%)116 (8.6%)215 (16.6%)1357 (15.1%)
  1. SD standard deviation, ICD International Classification of Diseases, aeither identified at follow-up interview or predicted from the informant deceased interview