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Table 2 Sociodemographic data and characteristics of rural and urban disabled elderly

From: Predicting depression among rural and urban disabled elderly in China using a random forest classifier

Variables

Rural

Urban

P value1

Non-depression

Depression

P value

Sum

Non-depression

Depression

P value

Sum

Demographical factors

 Gender

        

0.636

  Male

164(46.07)

187(38.56)

0.029

351(41.74)

153(44.61)

113(40.94)

0.360

266(42.97)

 

  Female

192(53.93)

298(61.44)

 

490(58.26)

190(55.39)

163(59.06)

 

353(57.03)

 

 Age

71.35(0.38)

70.63(0.31)

0.0719

70.93(0.24)

72.51(0.43)

72.44(0.47)

0.911

72.48(0.32)

 

 Marital status

        

0.179

  Married

262(73.60)

311(64.12)

0.004

573(68.13)

251(73.18)

191(69.20)

0.277

442(71.41)

 

  Unmarried/divorced/widowed

94(26.40)

174(35.88)

 

268(31.87)

92(26.82)

85(30.80)

 

177(28.59)

 

 Years of education

        

0.000

  0

261(73.31)

384(79.18)

0.001

654(76.69)

218(63.56)

175(63.41)

0.992

393(63.49)

 

  1 ~ 12

61(17.13)

43(8.87)

 

104(12.37)

90(26.24)

72(26.09)

 

162(26.17)

 

  > 12

34(9.55)

58(11.96)

 

92(10.92)

35(10.20)

29(10.51)

 

64(10.34)

 

 Ln (Family per capita income)

8.83(0.05)

8.67(0.04)

0.0218

13,721.75(2462.48)

9.63(0.06)

9.39(0.06)

0.004

24,088.76(1953.38)

0.001

Health behavior

 Smoking

        

0.352

  Yes

86(24.16)

98(20.21)

0.171

184(21.88)

71(20.70)

52(18.84)

0.564

123(19.87)

 

  No

270(75.84)

387(79.79)

 

657(78.12)

272(79.30)

224(81.16)

 

496(80.13)

 

 Drinking more than three times a week

        

0.828

  Yes

39(10.96)

37(7.63)

0.096

76(9.04)

39(11.37)

19(6.88)

0.057

58(9.37)

 

  No

317(89.04)

448(92.37)

 

765(90.96)

304(88.63)

257(993.12)

 

561(90.63)

 

 Sleep duration

        

0.064

  < 6 h

34(9.55)

97(20.00)

0.000

131(15.58)

36(10.50)

80(28.99)

0.000

116(18.74)

 

  6-8 h

110(30.90)

131(27.01)

 

241(28.66)

111(32.36)

84(30.43)

 

195(31.50)

 

  > 8

212(59.55)

257(52.99)

 

469(55.77)

196(57.14)

112(40.58)

 

308(49.76)

 

 Regular exercise

        

0.000

  Yes

132(37.08)

149(30.72)

0.053

281(33.41)

167(48.69)

112(40.58)

0.044

279(45.07)

 

  No

224(62.92)

336(69.28)

 

560(66.59)

176(51.31)

164(59.42)

 

340(54.93)

 

Health status

 Chronic disease

        

0.147

  Yes

94(26.40)

229(47.22)

0.000

323(38.41)

125(36.44)

136(49.28)

0.001

261(42.16)

 

  No

262(73.60)

256(52.78)

 

518(61.59)

218(63.56)

140(50.72)

 

358(57.84)

 

 BMI

21.93(0.23)

21.29(0.21)

0.0424

21.57(0.15)

23.04(0.23)

22.32(0.26)

0.037

22.73(0.17)

0.000

 Disease or accidence experience within the past 2 weeks

        

0.005

  Yes

147(41.29)

335(69.07)

0.000

482(57.31)

133(38.78)

176(63.77)

0.000

309(49.92)

 

  No

209(58.71)

150(30.93)

 

359(42.69)

210(61.22)

100(36.23)

 

310(50.08)

 

 Hospitalization within 1 year

        

0.005

  Yes

82(23.03)

176(36.29)

0.000

258(30.68)

114(33.24)

119(43.12)

0.012

233(37.64)

 

  No

274(76.97)

309(63.71)

 

583(69.32)

229(66.76)

157(56.88)

 

386(62.36)

 

 Ln (Total medical expenses within 1 year)

7.32(0.09)

7.92(0.08)

0.000

6730.30(538.75)

8.30(0.01)

8.55(0.10)

0.081

12,486.44(1189.13)

0.000

 Self-rated health

        

0.023

  Poor

127(35.67)

316(65.15)

0.000

443(52.68)

108(31.49)

170(61.59)

0.000

278(44.91)

 

  Fair

84(23.60)

82(16.91)

 

166(19.74)

92(26.82)

66(23.91)

 

158(25.53)

 

  Good

90(25.28)

68(14.02)

 

158(18.79)

97(28.28)

32(11.59)

 

129(20.84)

 

  Very good

36(10.11)

9(1.86)

 

45(5.35)

31(9.04)

6(2.17)

 

37(5.98)

 

  Excellent

19(5.34)

10(2.06)

 

39(3.45)

15(4.37)

2(0.72)

 

17(2.75)

 

 Changing in perceived health

        

0.006

  Better

23(6.46)

34(7.01)

0.000

57(6.78)

32(9.33)

10(3.62)

0.000

42(6.79)

 

  Unchanged

133(37.36)

78(16.08)

 

211(25.09)

140(40.82)

62(22.46)

 

202(32.63)

 

  Worse

200(56.18)

373(76.91)

 

573(68.13)

171(49.85)

204(73.91)

 

375(60.58)

 

Family relations

 Number of family members

        

0.000

  < 3

123(34.55)

181(37.32)

0.711

128(15.22)

123(35.86)

114(41.30)

0.383

133(21.49)

 

  3–5

130(36.52)

170(35.05)

 

394(46.85)

152(44.31)

112(40.58)

 

332(53.63)

 

  > 5

103(28.93)

134(27.63)

 

319(37.93)

68(19.83)

50(18.12)

 

154(24.88)

 

 Number of children

        

0.000

  < 3

52(14.61)

76(15.67)

0.758

304(36.15)

71(20.70)

62(22.46)

0.714

237(38.29)

 

  3–6

172(48.31)

222(45.77)

 

300(35.67)

189(55.10)

143(51.81)

 

264(42.65)

 

  > 6

132(37.08)

187(38.56)

 

237(28.18)

83(24.20)

71(25.72)

 

118(19.06)

 

 Closing to children

        

0.921

  Yes

302(84.83)

398(82.06)

0.288

700(83.23)

299(87.17)

215(77.90)

0.002

514(83.04)

 

  No

54(15.17)

87(17.94)

 

141(16.77)

44(12.83)

61(22.10)

 

105(16.96)

 

 Receiving financial assistance from children

        

0.000

  Yes

197(55.34)

181(37.32)

0.032

501(59.57)

149(43.44)

126(45.65)

0.582

344(55.57)

 

  No

159(44.66)

304(62.68)

 

340(40.43)

194(56.56)

150(54.35)

 

275(44.43)

 

 Weekly family dinner

        

0.393

  Seven times

319(89.61)

405(83.51)

0.012

724(86.09)

301(87.76)

222(80.43)

0.012

523(84.49)

 

  Less than seven times

37(10.39)

80(16.49)

 

117(13.91)

42(12.24)

54(19.57)

 

96(15.51)

 

Social relations

 Neighborhood help

1.70(0.05)

1.41(0.05)

0.000

1.58(0.04)

1.48(0.05)

1.66(0.06)

0.013

1.56(0.04)

0.615

 Neighborhood relationship

2.25(0.38)

1.88(0.04)

0.000

2.10(0.03)

2.04(0.04)

2.21(0.05)

0.020

2.14(0.03)

0.196

 Community emotion

2.01(0.04)

1.73(0.4)

0.000

1.89(0.03)

1.87(0.05)

2.18(0.06)

0.000

2.01(0.04)

0.015

 Participating organizations

        

0.000

  Yes

48(13.48)

61(12.58)

0.699

109(12.96)

100(29.15)

76(27.54)

0.657

176(28.43)

 

  No

308(86.52)

424(87.42)

 

732(87.04)

243(70.85)

200(72.46)

 

443(71.57)

 

 Trusting people

        

0.882

  Yes

217(61.30)

258(53.75)

0.030

475(56.95)

206(60.41)

143(51.81)

0.032

349(56.56)

 

  No

137(38.70)

222(46.25)

 

359(43.05)

135(39.59)

133(48.19)

 

268(43.44)

 

Subjective attitude

 Life satisfaction

4.09(0.05)

3.52(0.05)

0.000

3.76(0.04)

4.14(0.05)

3.55(0.07)

0.000

3.88(0.04)

0.030

 Having trust in the future

3.88(0.06)

3.27(0.06)

0.000

3.53(0.04)

3.97(0.06)

3.36(0.07)

0.000

3.70(0.05)

0.004