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Table 3 Participants characteristics among 5 categories

From: Novel subgroups of functional ability in older adults and their associations with adverse outcomes

  Class1 Class2 Class3 Class4 Class5
N 685(11.4) 618(10.3) 463(7.7) 2036(34.0) 2190(36.6)
Sex
 Male 254(37.0) 318(51.5) 174(37.6) 1257(61.8) 991(45.2)
 Female 431(63.0) 300(48.5) 289(62.4) 779(38.2) 1199(54.8)
Age 71.54 ± 7.63 67.04 ± 5.98 69.36 ± 7.25 66.76 ± 5.88 68.25 ± 6.64
Marital status, %
 Married 463(67.6) 506(81.9) 345(74.5) 1712(84.1) 1679(35.7)
 Divorced 217(31.7) 111(18.0) 116(25.1) 305(15.0) 489(22.3)
 unmarried 5(0.7) 1(0.2) 2(0.4) 19(38.8) 22(1.0)
Educational level, %
 illiteracy 387(56.5) 185(29.9) 248(53.6) 469(23.0) 923(42.1)
 Primary school 239(34.9) 302(48.9) 188(40.6) 992(48.7) 1000(45.7)
 High school 54(7.9) 117(18.9) 26(5.6) 507(24.9) 246(11.2)
 Bachelor and above 5(0.7) 14(2.3) 1(0.2) 68(3.4) 21(1.0)
Place of residence
 Rural 583(85.1) 481(77.8) 427(92.2) 1443(70.9) 1832(83.7)
 Urban 102(14.9) 137(10.3) 36(7.8) 593(29.1) 358(16.3)
Numbers of children, %
 0 177(25.8) 158(25.6) 122(26.3) 572(28.1) 633(28.9)
 1 ~ 3 168(24.5) 203(32.8) 106(22.9) 753(37.0) 639(29.2)
 4 ~ 5 220(32.1) 192(31.3) 156(33.7) 515(25.3) 629(28.7)
  > 5 120(17.5) 65(10.5) 79(17.1) 196(9.6) 289(13.2)
BMI 22.60 \(\pm\) 4.50 22.91 \(\pm\) 3.71 22.74 ± 4.41 23.04 ± 3.89 22.84 ± 4.23
Systolic pressure 141.56.09 ± 30.50 132.15 ± 24.93 136.49 ± 23.85 134.98 ± 24.78 136.30 ± 25.04
Diastolic pressure 76.73 ± 12.70 74.01 ± 12.33 75.39 ± 12.77 75.25 ± 11.20 75.00 ± 12.02
Sleeping duration 5.60 ± 2.41 6.07 ± 3.47 5.33 ± 2.39 6.63 ± 1.64 6.09 ± 2.07
Hours of informal care 33.73 ± 92.07 2.15 ± 19.17 16.09 ± 52.7 0.49 ± 8.17 4.79 ± 29.99
Hours of formal care 83.55 ± 143.61 6.95 ± 48.15 47.80 ± 95.17 1.33 ± 14.18 14.85 ± 59.44
Satisfaction
 Extremely 8(1.2) 8(1.3) 3(0.6) 53(2.6) 27(0.5)
 Very much 97(14.2) 126(20.4) 61(13.2) 497(24.4) 427(19.5)
 Relative 430(62.8) 419(67.8) 296(63.9) 1346(66.1) 1449(66.2)
 A little 114(16.6) 58(9.4) 74(16.0) 130(6.4) 237(10.8)
 Not at all 36(5.3) 7(1.1) 29(6.3) 10(0.5) 50(2.3)
Self-rated health
 Very good 4(0.6) 10(1.6) 2(0.4) 145(7.1) 45(2.1)
 Good 25(3.6) 52(8.4) 13(2.8) 455(22.3) 205(9.4)
 Fair 174(25.4) 264(42.7) 110(23.8) 1072(52.7) 1055(48.2)
 Bad 317(46.3) 235(38.0) 224(48.4) 338(16.6) 717(32.7)
 Very bad 165(24.1) 57(9.3) 114(24.6) 26(1.3) 168(7.7)
  1. class 1: viability disorders, class 2: acute disease, class 3: somatic functional disorders, class 4: health, class 5: sub-disorder status