Table 4.

Risk of childhood ALL overall and B-cell precursor ALL associated with father's passive smoking 3 months before conception among nonsmoking parents: the NCCLS, 2000–2008 (phase II)

OverallB-cell precursor ALL
ControlsCasesCases
Sources of passive smokingN = 392N = 300ORa (95% CI)N = 268ORa (95% CI)
Home
 No3792931.00 (—)2611.00 (—)
 Yes1070.82 (0.30–2.22)70.92 (0.34–2.54)
Work place(s)
 No3122321.00 (—)2091.00 (—)
 Yes68591.08 (0.73–1.62)521.05 (0.69–1.59)
Car(s)
 No3592651.00 (—)2351.00 (—)
 Yes23301.50 (0.84–2.69)291.66 (0.92–3.00)
Public area(s)
 No3012241.00 (—)2001.00 (—)
 Yes87711.04 (0.72–1.51)631.04 (0.71–1.53)

Abbreviation: CI, confidence interval.

  • aOR adjusted for child's age at diagnosis/reference date, sex, and Hispanic status, maternal race, and household annual income.