Skip to main content

Table 2 Maternal and neonatal characteristics by perinatal care intensity level

From: Intensity of perinatal care, extreme prematurity and sensorimotor outcome at 2 years corrected age: evidence from the EPIPAGE-2 cohort study

Variable Levels Low Medium High p value
   n % n % n %  
Gestational age at delivery (N = 1112)
  22 39 10.9 34 8.9 30 8.0 < 0.001
  23 43 12.0 50 13.2 36 9.6  
  24 88 24.6 79 20.8 50 13.4  
  25 75 21.0 103 27.1 115 30.8  
  26 113 31.6 114 30.0 143 38.2  
Maternal length of stay prior to delivery (N = 1059)
  < 24 h 259 74.6 270 74.4 246 70.5 0.59
  24 to < 48 h 55 15.8 52 14.3 56 16.0  
  48 to < 72 h 16 4.6 20 5.5 18 5.2  
  72+ h 17 4.9 21 5.8 29 8.3  
Multiple pregnancy (N = 1112)
  No 266 74.3 258 67.9 264 70.6 0.16
  Yes 92 25.7 122 32.1 110 29.4  
Foetal sex (N = 1105)
  Male 178 50.3 180 47.6 178 47.7 0.72
  Female 176 49.7 198 52.4 195 52.3  
Maternal age group (N = 1105)
  < 25 years 81 22.6 65 17.1 71 19.4 0.16
  25-29 years 99 27.6 121 31.8 119 32.4  
  30-34 years 94 26.3 123 32.4 105 28.6  
  ≥ 35 years 84 23.5 71 18.7 72 19.6  
Mother born outside of France (N = 1033)
  No 239 72.9 259 74.9 261 72.7 0.78
  Yes 89 27.1 87 25.1 98 27.3  
Single mother (N = 1044)
  Yes 38 11.2 38 10.7 38 10.8 0.97
  No 300 88.8 317 89.3 313 89.2  
Family SES (N = 983)
  Professional 64 20.0 49 14.9 95 28.4 0.01
  Intermediate 62 19.4 56 17.1 48 14.3  
  Administrative, public service, self-employed, students 75 23.4 101 30.8 77 23.0  
  Shop assistants, service workers 45 14.1 49 14.9 43 12.8  
  Manual workers 49 15.3 47 14.3 51 15.2  
  Unemployed 25 7.8 26 7.9 21 6.3  
Primiparous (N = 1101)
  No 161 45.6 162 43.1 159 42.7 0.70
  Yes 192 54.4 214 56.9 213 57.3  
Maternal fertility treatment (N = 1069)
  No 291 85.3 294 79.5 279 77.9 0.03
  Yes 50 14.7 76 20.5 79 22.1  
pPROM (N = 1053)
  No 208 60.6 212 58.4 219 63.1 0.44
  Yes 135 39.4 151 41.6 128 36.9  
Chorioamnionitis diagnosed < 48 h to delivery (N = 930)
  No 190 65.1 221 70.4 240 74.1 0.05
  Yes 102 34.9 93 29.6 84 25.9  
SGA (N = 1037)
  Yes 83 25.0 77 21.8 88 25.1 0.50
  No 249 75.0 277 78.2 263 74.9  
Spontaneous labour (N = 908)
  None 64 23.1 71 22.8 76 23.8 0.96
  Spontaneous 213 76.9 240 77.2 244 76.2  
Spontaneous rupture of membranes (N = 981)
  No 130 39.8 130 40.0 138 42.0 0.82
  Yes 197 60.2 195 60.0 191 58.0  
Foetal presentation (N = 924)
  Cephalic 139 50.0 177 55.8 183 55.6 0.19
  Breech 128 46.0 120 37.8 133 40.4  
  Other 11 4.0 20 6.3 13 4.0