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Table 1 Demographic characteristics of participants (N = 948)

From: Utilization of preconception care and its impacts on health behavior changes among expectant couples in Shanghai, China

Characteristic Overall Women participated in PCC (n = 400) Women not participated in PCC (n = 548) cOR (95% CI) aOR (95% CI) P
Gestational age (week, Mean ± SD) 25.74 ± 8.43 26.39 ± 8.41 25.27 ± 8.43
  N % N % N %    
Age
  < 30 years 534 56.3 203 50.8 331 60.4 ref ref  
  ≥ 30 years 414 43.7 197 49.2 217 39.6 1.48 (1.14,1.92) 1.85 (1.37,2.52) < 0.001
Household registration
 Shanghai 310 32.7 146 36.5 164 29.9 ref ref  
 Non-Shanghai 638 67.3 254 63.5 384 70.1 0.74 (0.57,0.98) 0.82 (0.61,1.10) 0.192
Education level
 Junior middle school and below 85 9.0 29 7.3 56 10.2 ref ref  
 Senior middle school 121 12.7 50 12.5 71 13.0 1.36 (0.77,2.43) 1.42 (0.78,2.61) 0.256
 College and above 742 78.3 321 80.2 421 76.8 1.47 (0.93,2.39) 1.35 (0.77,2.39) 0.294
Family income per month
  < 5000RMB 77 8.1 30 7.5 47 8.6 ref ref  
 5000 – 10000RMB 264 27.9 113 28.2 151 27.5 1.17 (0.70,1.98) 1.05 (0.61,1.82) 0.873
  ≥ 10000RMB 607 64.0 257 64.3 350 63.9 1.15 (0.71,1.89) 0.92 (0.53,1.61) 0.774
Employment status
 Employed 724 76.4 302 75.5 422 77.0 ref ref  
Unemployed 224 23.6 98 24.5 126 23.0 1.09 (0.80,1.47) 1.37 (0.97,1.95) 0.075
Parity
 0 653 68.9 291 72.8 362 66.1 ref ref  
  ≥ 1 295 31.1 109 27.3 186 33.9 0.72 (0.55,0.97) 0.56 (0.41,0.77) < 0.001
Preconception tobacco use
 No 925 97.6 393 98.3 532 97.1 ref ref  
 Yes 23 2.4 7 1.7 16 2.9 0.59 (0.23,1.40) 0.60 (0.22,1.49) 0.288
Preconception Secondhand smoke exposure
 No 775 81.8 328 82.0 447 81.6 ref ref  
 Yes 173 18.2 72 18.0 101 18.4 0.97 (0.69,1.35) 1.06 (0.74,1.51) 0.769
Preconception alcohol use
 No 889 93.8 379 94.8 510 93.1 ref ref  
 Yes 59 6.2 21 5.2 38 6.9 0.74 (0.42,1.28) 0.72 (0.39,1.29) 0.274
  1. PCC Preconception Care, cOR crude odds ratio, aOR adjusted odds ratio