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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 Cohort

Cuba

Dominican Republic

Mexico

Peru

Puerto Rico

Venezuela

Total

Baseline sample (no needs for care at baseline)

2225

1770

1807

1770

1714

1754

11,040

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 dependencea

271 (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)

8106.6

5800.9

4132.9

3928.2

5196

4944.1

32,108.7

 Incidence rate per 1000 person-years

33.4

64.8

50.6

39.7

53.1

48.1

47.5

 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 good

236 (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