Table 3.

HR (95% CI) derived from Cox proportional hazard models for predictors of mortality for unilateral casesa

UnadjustedModel 1Model 2Model 3Model 4
PredictorHR (95% CI)HR (95% CI)HR (95% CI)HR (95% CI)HR (95% CI)
Lag timeb (month)1.372 (0.846–2.227)1.332 (0.856–2.071)1.356 (0.857–2.146)1.348 (0.840–2.162)1.338 (0.862–2.078)
Maternal education0.765c (0.633–0.925)0.782d (0.637–0.960)0.738d (0.569–0.957)0.732d (0.567–0.944)
IIRCe,f
St. Jude6.77f (2.75–16.66)
ISS3.88f (2.10–7.18)
  • aOf 107 children with unilateral disease with lag time data, 103 were followed, 12 of these died; 88.35% censored.

  • bNatural log transformed.

  • cP < 0.01.

  • dP < 0.05.

  • eAll 12 deaths occurred in children with IIRC classification of “E”, resulting in an extremely large coefficient.

  • fP < 0.0001.