Skip to main content

Table 4 Factors independently associated with Acute Adverse Perinatal Outcome (AcAPO) and with any Adverse Perinatal Outcome (APO) by Poisson multiple regression analysis. WHO Multicountry Survey, 2010–2011

From: Perinatal outcomes in twin pregnancies complicated by maternal morbidity: evidence from the WHO Multicountry Survey on Maternal and Newborn Health

Model/ Variables PRadj 95% CI p
AcAPO [n = 283,549]
 Gestational age at delivery (weeks) 0.81 0.80–0.82 < 0.001
 Maternal complications (PLTC, MNM, MD) 1.88 1.76–2.02 < 0.001
 Group (Twin) 1.50 1.40–1.61 < 0.001
 Mode of delivery (Vaginal) 0.64 0.58–0.70 < 0.001
 Parity (≥1) 0.86 0.81–0.91 < 0.001
 Marital status (With no partner) 1.43 1.12–1.83 0.004
 Maternal education (Up to nine years) 1.18 1.04–1.33 0.011
 Maternal age (years) 1.006 1.001–1.011 0.014
APO [n = 283,393]
 Group (Twin) 1.87 1.78–1.97 < 0.001
 Maternal complications (PLTC, SMM, MD) 1.39 1.32–1.46 < 0.001
 Parity (≥1) 0.82 0.80–0.85 < 0.001
 Gestational age at delivery (weeks) 0.96 0.95–0.97 < 0.001
 Maternal education (Up to nine years) 1.23 1.15–1.32 < 0.001
 Maternal age (years) 0.99 0.986–0.994 < 0.001
  1. AcAPO Acute Adverse Perinatal Outcome (Apgar score at 5th min < 7 OR Perinatal death OR NICU admission)
  2. APO any Adverse Perinatal Outcome (Apgar score at 5th min < 7 OR Perinatal death OR NICU admission OR SGA)
  3. PRadj = prevalence ratio adjusted for cluster effect; 95% CI: 95% confidence interval for prevalence ratio
  4. Poisson multiple regression analysis, controlled by: Group (Single:0; Twin: 1); Age (years); Maternal education (Up to nine years: 1; > 10 years: 0); Parity (0/≥1: 1); Marital status (With no partner: 1/With partner: 0); Gestational age at delivery (weeks); Onset of labor (Spontaneous: 0; Other: 1); Mode of delivery (Vaginal: 1; C-section: 0); Maternal complications (No complication: 0/PLTC, MNM, MD: 1)