TABLE 2

Adjusted ORs (95% CIs) for Respiratory Tract Infections in Past Year of Children in the NHANES III Aged 6 to <24 Months

Pneumonia (n = 2190)Recurrent URI (n = 2010)OM<12 (n = 1993)ROM (n = 1963)Wheeze (n = 1950)
No BF2.02 (0.64–6.34)1.41 (0.74–2.70)1.57 (0.91,2.71)2.30 (1.12–4.71)a1.05 (0.60,1.81)
FullBF<11.34 (0.39–4.62)1.49 (0.76–2.92)1.44 (0.81,2.57)1.80 (0.88–3.64)1.41 (0.78,2.57)
FullBF1-31.97 (0.53–7.27)1.34 (0.67–2.69)1.87 (1.07,3.26)a2.07 (1.12–3.79)a1.07 (0.54,2.12)
FullBF4-54.27 (1.27–14.35)a1.53 (0.63–3.68)1.25 (0.69,2.27)1.95 (1.06–3.59)a0.98 (0.49,1.96)
FullBF≥6ReferentReferentReferentReferentReferent
Ethnicity
    WhiteReferentReferentReferentReferentReferent
    Black1.09 (0.58–2.03)0.82 (0.57–1.18)0.67 (0.052,0.86)a0.55 (0.33–0.91)a0.59 (0.37–0.92)a
    Mexican American1.63 (0.86–3.06)0.89 (0.59–1.34)0.82 (0.57,1.17)0.81 (0.53–1.23)1.37 (0.92–2.04)
    Other0.35 (0.08–1.55)0.87 (0.54–1.38)0.68 (0.46,1.02)0.74 (0.039–1.40)0.81 (0.43–1.50)
Day care ≥10 h/wkNA1.48 (0.99–2.22)2.04 (1.37,3.04)a1.64 (1.11–2.42)a2.93 (2.08–4.14)a
Head-of-household educationNA1.02 (0.96–1.08)1.02 (0.96,1.08)1.02 (0.95–1.08)0.97 (0.92–1.02)
Poverty indexNA1.14 (1.04–1.26)a1.04 (0.94,1.16)1.04 (0.93–1.16)0.89 (0.76–1.05)
Family sizeNA1.02 (0.96–1.09)NA0.99 (0.90–1.11)NA
Smoke exposure
    Prenatal + postnatal1.10 (0.56–2.14)0.91 (0.62–1.34)1.07 (0.73,1.56)1.48 (1.01–2.16)a1.99 (1.36–2.92)a
    Prenatal only2.26 (0.75–6.83)2.02 (1.10–3.69)a1.29 (0.74,2.27)1.21 (0.59–2.48)0.77 (0.35–1.08)
    Postnatal only1.83 (0.91–3.70)0.82 (0.55–1.21)0.84 (0.58,1.20)0.76 (0.46–1.25)1.07 (0.71–1.62)
    NoneReferentReferentReferentReferent
Birth weight, g0.99 (0.99–0.99)aNANA1.00 (1.00–1.00)a0.99 (0.99–1.00)
Age
    6 to <12 moNAReferentNAReferentNA
    12 to <24 moNA2.37 (1.97–2.85)aNA3.69 (2.82,4.84)aNA
Two-parent household0.78 (0.44–1.41)NANANA0.67 (0.46,0.98)a
Gender, maleNA1.14 (0.88–1.48)NANANA
Parent asthma/hay feverNANANANA0.87 (0.66–1.15)
  • Adjusted for all variables except those indicated by NA (not included in regression model for the corresponding outcome).

  • a Statistically significant results.