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Table 4 Sociodemographic Characteristics of Women Randomized Into Control and Intervention Groups

From: Recruitment and retention of women in a large randomized control trial to reduce repeat preterm births: the Philadelphia Collaborative Preterm Prevention Project

  Intervention
N = 565
Control
N = 561
P-value P-value*
US born 525 (92.9) 499 (88.95) .02 .32
Race/Ethnicity     
   NH Black 406 (71.9) 399 (71.1) .96  
   NH-White 58 (10.3) 59 (10.5)   
   Hispanic/other 101 (17.9) 103 (18.4)   
Education    .62  
   < HS 180 (31.9) 181 (32.3)   
   HS/GED 227 (40.2) 211 (37.6)   
   College or more 158 (27.96) 169 (30.1)   
Married 96 (17.0) 122 (21.9) .04 .64
Income     
   Income <= 10,000 113 (20) 113 (20.2) .99  
   10-30,000 212 (37.5) 205 (36.6)   
   > 30,000 129 (22.8) 133 (23.7))   
   DK/refused 111 (19.6) 109 (19.5)   
Insurance Status    .50  
   Private Insurance 171 (30.3) 155 (27.6)   
   Medicaid 374 (66.3) 390 (69.5)   
   Uninsured 19 (3.4) 16 (2.9)   
Age mean (sd) 25.4 (6.5) 25.1 (6.3) .34  
GA mean (sd) 30.2 (3.9) 30.2 (4.0)   
Baby-alive 504 (89.2) 499 (89.3) .91  
Regular dental visits 320 (56.6) 339 (60.4) .97  
Periodontal disease 37 (6.6) 39 (6.9) .20  
Physical health-exe/V good/good 501 (88.7) 515 (91.8) .79  
Physical health-fair/poor 64 (11.3) 46 (8.2) ..08  
Smoking before pregnancy 175 (30.9) 156 (27.9) .25  
Ever homeless 88 (15.6) 76 (13.6) .34  
BMI mean (sd) 26.4 (6.8) 26.2 (6.6) .56  
CES-D >=23 151(26.8) 140 (25) .50  
  1. *P values reflect adjustment for multiple comparisons using Bonferroni method