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Table 2 Unadjusted factors associated with breastfeeding in the first hour after birth, according to mother, newborn and hospital characteristics, Brazil, 2011

From: The baby-friendly hospital initiative and breastfeeding at birth in Brazil: a cross sectional study

Variable/categories Prevalencea Prevalence 99 % CIa Unadjusted ORb Unadjusted OR 99 % CIb
Maternal age
 12–19 years 62.5 58.2–66.6 2.01 1.60–2.52
 20–34 years 55.8 51.8–59.8 1.52 1.29–1.81
 35 years or more 45.3 40.1–50.7 1.00 -
Skin color/racec
 White 51.4 46.6–56.2 1.00 -
 Black 59.4 53.6–64.9 1.38 1.07–1.79
 Brown 58.1 54.0–62.1 1.31 1.11–1.55
 Yellow 62.6 48.7–74.7 1.58 0.90–2.78
 Indigenous 75.7 53.4–89.8 2.94 1.03–8.41
Maternal years of schoolingd
  < = 7 62.8 58.7–66.7 2.72 2.08–3.55
 8 to 10 61.4 57.1–65.7 2.57 1.96–3.36
 11 to 14 52.2 47.6–56.9 1.76 1.41–2.19
 15 or more 38.3 32.6–44.3 1.00 -
Maternal work
 No 60.0 56.2–63.8 1.49 1.31–1.70
 Yes 50.2 45.8–54.6 1.00 -
Marital status at delivery
 Without companion/spouse 59.0 54.3–63.4 1.16 1.02–1.31
 With companion/spouse 55.4 51.5–59.1 1.00 -
Parity
 Primiparous 58.6 54.7–62.4 1.00 -
 Multiparous 53.1 48.9–57.3 1.25 1.11–1.50
Brazilian region of residence
 North 71.0 65.3–76.1 2.30 1.56–3.39
 Northeast 53.7 47.6–59.7 1.09 0.75–1.59
 Southeast 51.5 44.4–58.6 1.00 -
 South 61.1 50.7–70.6 1.48 0.89–2.47
 Middle West 63.1 55.7–70.0 1.61 1.06–2.46
Intended pregnancy
 Yes 54.0 49.9–58.1 1.00 -
 Did not intend to get pregnant now 56.7 52.2–61.1 1.17 0.98–1.26
 Not at all 58.6 54.2–62.7 1.20 1.04–1.40
Smoking during pregnancy
 No 55.6 51.8–59.3 1.00 -
 Yes, part of pregnancy 57.3 49.0–65.3 1.07 0.81–1.43
 Yes, whole pregnancy 61.0 54.7–66.9 1.25 1.01–1.55
Funding of prenatal care
 No prenatal care 52.8 40.2–65.0 1.71 0.98–2.99
 Public 62.4 58.3–66.3 2.55 1.97–3.29
 Mixed 52.7 45.3–60.0 1.71 1.23–2.38
 Private 39.5 33.7–45.6 1.00 -
Information about breastfeeding at prenatal care
 No prenatal care 52.8 40.2–65.0 1.02 0.61–1.71-
 Received 58.2 54.5–61.8 1.28 1.11–1.48
 Did not receive 52.2 47.2–57.0 1.00 -
Hospital fundinge
 Public 61.1 57.0–65.1 2.73 1.94–3.86
 Private 36.5 29.4–44.3 1.00 -
Baby-Friendly Hospitale
 Yes 69.4 64.9–73.6 2.49 1.85–3.34
 In process 63.9 51.0–75.1 1.94 1.11–3.41
 No 47.7 42.5–53.0 1.00 -
Companion at hospital
 None 55.6 49.8–61.2 1.00 -
 Part time companion 54.3 49.8–58.8 0.95 0.75–1.20
 Full time companion 61.1 55.4–66.6 1.26 0.92–1.72
Type of delivery
 Normal 70.3 66.2–74.1 3.29 2.67–4.06
 Forceps 60.3 47.9–71.5 2.11 1.27–3.51
 Intrapartum caesarean 48.7 43.0–54.4 1.32 1.07–1.63
 Antepartum caesarean 41.8 37.2–46.5 1.00 -
Gestational age
 32 0/7 to 36 6/7 weeks 37.4 32.9–42.1 0.44 0.36–0.53
 37 0/7 or more 57.8 53.9–61.6 1.00 -
Birth weight
 1500–2499 g 57.4 53.5–61.2 0.42 0.36–0.50
 2500 g or more 36.3 31.0–42.0 1.00 -
Total 56.0 52.2–59.7   
  1. aFinal valid sample prevalence and 99 % Confidence Interval (99 % CI), considering the complex sample design
  2. bUnadjusted Odds Ratio (OR) and 99 % CI, considering the complex sample design
  3. cSelf-reported skin color/race, according to Brazilian classification based on ‘Instituto Brasileiro de Geografia e Estatística’definitions, 2010
  4. dBased on ‘Instituto Brasileiro de Geografia e Estatística’definitions, 2010
  5. eBased on hospital manager information