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Table 1 Variables for older rural-to-urban migrant workers and older rural dwellers before after matching

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

  Before Matching N(%) After Matching N(%)
Older rural-to-urban migrant workers Older rural dwellers p-value Older rural-to-urban migrant workers Older rural dwellers p-value#
Depressive symptoms    < 0.05    0.092
 Yes 167(23.76) 1239(37.96)   55(30.73) 839(38.31)  
 No 536(76.24) 2025(62.04)   124(69.27) 1351(61.69)  
Biological characteristics & perceived susceptibility variables
 Gender    0.144    1.000
  Mena 122(57.28) 1701(52.11)   105(58.66) 1701(52.11)  
  Women 91(42.72) 4862(45.95)   74(41.34) 1563(47.89)  
 Age group    < 0.05    1.000
  50–60 a 153(71.83) 1455(66.44)   127(70.95) 2113(64.74)  
  61 and above 60(28.17) 735(33.56)   52(29.05) 1151(35.26)  
 Ill in the last month    0.158    0.306
  Yesa 19(8.92) 270(12.33)   17(9.5) 397(12.16)  
  No 194(91.08) 1920(87.67)   162(90.50) 2867(87.84)  
 Self-reported health    0.325    0.979
  Completely satisfieda 9(4.23) 70(3.2)   7(3.91) 117(3.58)  
  Very satisfied 39(18.31) 452(20.64)   32(17.88) 704(21.57)  
  Somewhat satisfied 108(50.70) 1021(46.62)   88(49.16) 1489(45.62)  
  Not very satisfied 46(21.60) 468(21.37)   42(23.46) 687(21.05)  
  Not at all satisfied 11(5.16) 179(8.17)   10(5.59) 267(8.18)  
 Chronic diseases    0.082    0.388
  Noa 93(43.66) 835(38.13)   77(43.02) 1296(39.71)  
  Only one 49(23.00) 667(30.46)   44(24.58) 987(30.24)  
  Two and above 71(33.33) 688(31.42)   58(32.40) 981(30.06)  
Life-style and health behavior variables
 Smoke    0.487    0.463
  Still smokinga 57(31.84) 1051(32.2)   62(29.11) 747(34.11)  
  Quit 116(64.80) 2123(65.04)   143(67.14) 1383(63.15)  
  Never smoked 6(3.35) 90(2.76)   8(3.76) 60(2.74)  
 Drink (in the past year)    0.718    0.687
  Drink more than once a montha 58(32.40) 935(28.65)   66(30.99) 643(29.36)  
  Drink but less than once a month 15(8.38) 293(8.98)   20(9.39) 199(9.09)  
  None of these 106(59.22) 2036(62.38)   127(59.62) 1348(61.55)  
 Sleeping time    < 0.05    0.178
  < =4a 32(17.88) 541(16.57)   37(17.37) 353(16.12)  
  4 ~ 8 136(75.98) 2390(73.22)   165(77.46) 1621(74.02)  
  > 8 11(6.15) 333(10.2)   11(5.16) 216(9.86)  
 Nap    0.218    0.439
  Yesa 110(61.45) 1867(57.2)   131(61.50) 1250(57.08)  
  No 69(38.55) 1397(42.8)   82(38.50) 940(42.92)  
Social interpersonal variables
 Living arrangement    0.082    1.000
  Live with spousea 176(82.63) 2538(77.76)   148(82.68) 1868(85.3)  
  Live without spouse 37(17.37) 726(22.24)   31(17.32) 322(14.7)  
 Educational attainment    0.096    0.616
  Primary school and above a 174(81.69) 363(11.12)   16(8.94) 256(11.69)  
  Primary school 24(11.27) 2468(75.61)   140(78.21) 1823(83.24)  
  Middle school and above 15(7.04) 433(13.27)   23(12.85) 111(5.07)  
 Social activity    < 0.05    < 0.05
  Nonea 64(30.05) 1489(45.62)   56(31.28) 1033(47.17)  
  1 70(32.86) 966(29.6)   63(35.20) 619(28.26)  
  > =2 79(37.09) 809(24.79)   60(33.52) 538(24.57)  
Living conditions and economic status       < 0.001
 Running water    < 0.001    
  Yesa 190(89.20) 2291(70.19)   158(88.27) 1514(69.13)  
  No 23(10.80) 973(29.81)   21(11.73) 676(30.87)  
 Type of in-house shower       
  Hot water provideda 6(2.82) 16(0.49) < 0.001 4(2.23) 12(0.55) < 0.05
  Water heater installed by the household 157(73.71) 1740(53.31)   132(73.74) 1132(51.69)  
  No 50(23.47) 1508(46.2)   43(24.02) 1046(47.76)  
 Clear in this house    < 0.001    0.256
  Gooda 82(38.50) 964(29.53)   65(36.31) 638(29.13)  
  Fair 110(51.64) 1973(60.45)   95(53.07) 1352(61.74)  
  Bad 21(9.86) 327(10.02)   19(10.61) 200(9.13)  
 Region    0.261    0.972
  Easta 80(37.56) 1275(39.06)   69(38.55) 817(37.31)  
  Middle 87(40.85) 1164(35.66)   70(39.11) 804(36.71)  
  West 46(21.60) 825(25.28)   40(22.35) 569(25.98)  
 Quintiles    0.371    1.000
  Pooresta 34(15.96) 688(21.08)   30(16.76) 376(17.17)  
  Poorer 50(23.47) 653(20.01)   42(23.46) 444(20.27)  
  Middle 46(21.60) 640(19.61)   40(22.35) 488(22.28)  
  Richer 41(19.25) 662(20.28)   34(18.99) 492(22.47)  
  Richest 42(19.72) 621(19.03)   33(18.44) 390(17.81)  
Social system
 Health insurance    < 0.001    1.000
  Basic health insurancea 186(87.32) 3110(95.28)   186(87.32) 2161(98.68)  
  None 27(12.68) 154(4.72)   27(12.68) 29(1.32)  
 Pension insurance    0.499    1.000
  Basic health insurancea 155(72.77) 2443(74.85)   155(72.77) 1759(80.32)  
  No 58(27.23) 821(25.15)   58(27.23) 431(19.68)  
  N 213 3477   179 2369  
  1. aReference levels in the regressions; Virtual variables for chi-2 test; p#-value indicated the weight to be considered