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Table 2 Variables for older rural-to-urban migrant workers and older urban residents before after matching

From: Decomposing differences in depressive symptoms between older rural-to-urban migrant workers and their counterparts in mainland China

Dependent variables Before Matching N (%) After Matching N (%)
Older rural-to-urban migrant workers Older urban residents p-value Older rural-to-urban migrant workers Older urban residents p-value#
Depressive symptoms    0.191    0.077
 Yes 60(28.17) 167(23.76)   55(28.50) 97(22.00)  
 No 153(71.83) 536(76.24)   138(71.50) 344(78.00)  
Biological characteristics & perceived susceptibility variables
 Gender    0.144    1.000
  Mena 122(57.28) 457(65.01)   114(59.07) 248(56.24)  
  Women 91(42.72) 246(34.99)   79(40.93) 193(43.76)  
 Age group    < 0.05    1.000
  50–60 a 153(71.83) 338(48.08)   141(73.06) 320(72.56)  
  61 and above 60(28.17) 365(51.92)   52(26.94) 121(27.44)  
 Ill in the last month    0.158    0.806
  Yesa 19(8.92) 68(9.67)   17(8.81) 42(9.52)  
  No 194(91.08) 635(90.33)   176(91.19) 399(90.48)  
 Self-reported health    0.325    0.929
  Completely satisfieda 9(4.23) 25(3.56)   9(4.66) 19(4.31)  
  Very satisfied 39(18.31) 102(14.51)   35(18.13) 60(13.61)  
  Somewhat satisfied 108(50.70) 413(58.75)   96(49.74) 261(59.18)  
  Not very satisfied 46(21.60) 132(18.78)   43(22.28) 82(18.59)  
  Not at all satisfied 11(5.16) 31(4.41)   10(5.18) 19(4.31)  
 Chronic diseases    0.082    1.000
  Noa 93(43.66) 255(36.27)   86(44.56) 86(44.56)  
  Only one 49(23.00) 189(26.88)   42(21.76) 42(21.76)  
  Two and above 71(33.33) 259(36.84)   65(33.68) 65(33.68)  
Life-style and health behavior variables
 Smoke    0.487    0.341
  Still smokinga 57(31.84) 183(26.03)   56(29.02) 123(27.89)  
  Quit 116(64.80) 496(70.55)   130(67.36) 298(67.57)  
  Never smoked 6(3.35) 24(3.41)   7(3.63) 20(4.54)  
 Drink (in the past year)    0.718    0.628
  Drink more than once a montha 58(32.40) 215(30.58)   62(32.12) 140(31.75)  
  Drink but less than once a month 15(8.38) 87(12.38)   17(8.81) 56(12.70)  
  None of these 106(59.22) 401(57.04)   114(59.07) 245(55.56)  
 Sleeping time    < 0.05    0.242
  < =4a 32(17.88) 81(11.52)   31(16.06) 44(9.98)  
  4 ~ 8 136(75.98) 593(84.35)   151(78.24) 380(86.17)  
  > 8 11(6.15) 29(4.13)   11(5.70) 17(3.85)  
 Nap    0.218    0.281
  Yesa 110(61.45) 417(59.32)   119(61.66) 259(58.73)  
  No 69(38.55) 286(40.68)   74(38.34) 182(41.27)  
Social interpersonal variables
 Living arrangement    0.082    1.000
  Live with spousea 176(82.63) 576(81.93)   166(86.01) 395(89.57)  
  Live without spouse 37(17.37) 127(18.07)   27(13.99) 46(10.43)  
 Educational attainment    0.096    1.000
  Primary school and above a 174(81.69) 30(4.27)   8(4.15) 8(1.81)  
  Primary school 24(11.27) 482(68.56)   36(18.65) 339(76.87)  
  Middle school and above 15(7.04) 191(27.17)   111(5.07) 94(21.32)  
 Social activity    < 0.05    0.175
  Nonea 64(30.05) 187(26.60)   58(30.05) 112(25.40)  
  1 70(32.86) 173(24.61)   61(31.61) 119(26.98)  
  > =2 79(37.09) 343(48.79)   74(38.34) 210(47.62)  
Living conditions and economic status       < 0.05
 Running water    < 0.001    
  Yesa 190(89.20) 674(95.87)   171(88.60) 419(95.01)  
  No 23(10.80) 29(4.13)   22(11.40) 22(4.99)  
 Type of in-house shower       
  Hot water provideda 6(2.82) 10(1.42) < 0.001 4(2.07) 6(1.36) 0.895
  Water heater installed by the household 157(73.71) 527(74.96)   143(74.09) 333(75.51)  
  No 50(23.47) 166(23.61)   46(23.83) 102(23.13)  
 Clear in this house    < 0.001    0.111
  Gooda 82(38.50) 316(44.95)   78(40.41) 213(48.30)  
  Fair 110(51.64) 324(46.09)   98(50.78) 187(42.40)  
  Bad 21(9.86) 63(8.96)   17(8.81) 41(9.30)  
 Region    0.261    0.740
  Easta 80(37.56) 232(33.00)   73(37.82) 145(32.88)  
  Middle 87(40.85) 368(52.35)   80(41.45) 236(53.51)  
  West 46(21.60) 103(14.65)   40(20.73) 40(20.73)  
 Quintiles    0.371    1.000
  Pooresta 34(15.96) 118(16.79)   26(13.47) 52(11.79)  
  Poorer 50(23.47) 142(20.20)   45(23.32) 95(21.54)  
  Middle 46(21.60) 152(21.62)   44(22.80) 100(22.68)  
  Richer 41(19.25) 142(20.20)   38(19.69) 104(23.58)  
  Richest 42(19.72) 21.19(21.19)   40(20.73) 90(20.41)  
Social system
 Health insurance    < 0.001    1.000
  Basic health insurancea 186(87.32) 583(82.93)   172(89.12) 398(90.25)  
  None 27(12.68) 120(17.07)   21(10.88) 43(9.75)  
 Pension insurance    0.499    1.000
  Basic health insurancea 155(72.77) 476(67.71)   143(74.09) 329(74.60)  
  No 58(27.23) 227(32.29)   50(25.91) 112(25.40)  
  N 213 703   193 441  
  1. aReference levels in the regressions; Virtual variables for chi-2 test; p#-value indicated the weight to be considered