Skip to main content

Table 1 Baseline characteristics of participants (N = 171); The B.A.B.Y. Study, 2007-2012

From: The impact of an exercise intervention on C - reactive protein during pregnancy: a randomized controlled trial

  Total population Exercise Health & wellness p-value
  (N = 171) (N = 84) (N = 87)
  N % N % N %
Sociodemographic Variables        
  Age (years)        
   16 to 19 24 14.0 14 16.7 10 11.5 0.49
   20 to 24 63 36.8 33 39.3 30 34.5  
   25 to 29 38 22.2 15 17.9 23 26.4  
    ≥30 46 26.9 22 26.2 24 27.6  
  Ethnicity        
   Hispanic 98 57.3 47 56.0 51 58.6 0.84
   Non-Hispanic 73 42.7 37 44.0 36 41.4  
  Education        
    <High School 38 22.2 22 26.2 16 18.4 0.17
   High School Graduate 52 30.4 24 28.6 28 32.2  
    >High School 68 39.8 35 41.7 33 37.9  
   Missing 13 7.6 3 3.6 10 11.5  
  Income        
    <$15,000 68 40.0 32 38.6 36 41.4 0.04
    >$15,000-$30,000 24 14.1 16 19.3 8 9.2  
    >$30,000 37 21.8 14 16.9 23 26.4  
   Don’t know/refused/missing 41 24.1 21 25.3 20 23.0  
  Marital Status        
   Single 121 70.8 59 70.2 62 71.3 0.52
   Married 48 28.1 25 29.8 23 26.4  
   Refused/missing 2 1.2 0 0.0 2 2.3  
  Living With Spouse/Partner        
   Yes 104 60.8 55 65.5 49 56.3 0.18
   No 55 32.2 26 31.0 29 33.3  
   Missing 12 7.0 3 3.6 9 10.3  
  Adults in Household (≥18 yrs)a        
   1 33 19.3 11 13.1 22 25.3 0.01
   2 85 49.7 46 54.8 39 44.8  
    ≥3 44 25.7 26 31.0 18 20.7  
   Missing 9 5.3 1 1.2 8 9.2  
  Children in Household (<18 yrs)a        
   0 42 24.6 26 31.0 16 18.4 0.04
   1 62 36.3 32 38.1 30 34.5  
   2 44 25.7 20 23.8 24 27.6  
    ≥3 17 9.9 6 7.1 11 12.6  
   Missing 6 3.5 0 0.0 6 6.9  
Medical History Variables        
  Prepregnancy BMI        
    <30 kg/m2 77 45.0 35 41.7 42 48.3 0.39
    >30 kg/m2 94 55.0 49 58.3 45 51.7  
  Previous GDM        
   Yes 18 10.5 7 8.3 11 12.6 0.3
   No 136 79.5 66 78.6 70 80.5  
   Missing 17 9.9 11 13.1 6 6.9  
  Family History of Diabetes        
   Yes 157 91.8 76 90.5 81 93.1 0.52
   No 3 1.8 1 1.2 2 2.3  
   Missing 11 6.4 7 8.3 4 4.6  
Behavioral Variables        
  Prepregnancy Smoking Status        
   None 132 77.2 65 77.4 67 77.0 0.95
    <10 cigarettes/day 17 9.9 9 10.7 8 9.2  
    >10 cigarettes/day 2 1.2 1 1.2 1 1.1  
   Missing 20 11.7 9 10.7 11 12.6  
  Current Smoking Status        
   None 110 64.3 53 63.1 57 65.5 0.18
    <10 cigarettes/day 39 22.8 21 25.0 18 20.7  
    >10 cigarettes/day 10 5.8 7 8.3 3 3.4  
   Missing 12 7.0 3 3.6 9 10.3  
  1. aIncluding the participants as appropriate: if <18 yrs, included as a child; if > 18 yrs, included as an adult