Table 5

Maternal complications during pregnancy and neonatal outcomes according to adequacy of prenatal care

Inadequate prenatal careAdequate prenatal care
N2106905
Pregnancy complications
EclampsiaM4
 n (%)2 (1.0)7 (0.1)
 OR (95% CI)9.5 (2.0 to 45.9)
 Adjusted OR (95% CI)12.6 (2.6 to 62.6)1 (Ref.)
UTIM3
 n (%)3 (1.4)24 (0.3)
 OR (95% CI)4.2 (1.2 to 13.9)
 Adjusted OR (95% CI)5.8 (1.7 to 19.7)1 (Ref.)
Neonatal outcomes
Extremely preterm <28 wM6
 n (%)5 (2.4)20 (0.3)
 OR (95% CI)8.4 (3.1 to 22.6)
 Adjusted OR (95% CI)0.7 (0.1 to 5.1)1 (Ref.)
Preterm<37 wM1
 n (%)35 (16.7)319 (4.6)
 OR (95% CI)4.1 (2.8 to 6.0)
 Adjusted OR (95% CI)1.1 (0.7 to 1.7)1 (Ref.)
Apgar at 5 min<7M2
 n (%)10 (5.8)140 (2.3)
 OR (95% CI)2.7 (1.4 to 5.1)
 Adjusted OR (95% CI)1.9 (0.8 to 4.3)1 (Ref.)
Intensive careM2
 n (%)33 (15.7)733 (10.6)
 OR (95% CI)1.6 (1.1 to 2.3)
 Adjusted OR (95% CI)1.0 (0.6 to 1.7)1 (Ref.)
Stillbirth/neonatal deathM5
 n (%)5 (2.4)28 (0.4)
 OR (95% CI)6.0 (2.3 to 15.7)
 Adjusted OR (95% CI)0.7 (0.1 to 7.1)1 (Ref.)
  • All the variables are adjusted according to multivariate models:

  • M1: Demographic variables (Table 1—pre-existing hypertension and diabetes).

  • M2: M1+preterm birth—history of spontaneous abortions.

  • M3: M1—misuse of alcohol or drugs—history of spontaneous abortions.

  • M4: M1—misuse of alcohol or drugs, BMI and history of spontaneous abortions.

  • M5: M2—misuse of alcohol or drugs.

  • Missing data as regard confounding variables in inadequate versus adequate prenatal care group: cohabitation 17.1% versus 9.7%, smoking 10% versus 2.2%, BMI 19.5% versus 2.1%.

  • BMI, body mass index; UTI, urinary tract infection.