Table 4:

Results of the multivariable regression model for CLLa

Estimate (95% CI)P Value
RR
    Count model coefficients
        Female sex3.99 (1.53–10.41).005
        Age at cranial RT b0.51 (0.27–0.97).041
OR
    Zero hurdle model coefficients
        Age at cranial RT b0.51 (0.30–0.88).015
        Treatment protocol (CT-RT)3.20 (1.17–8.75).024

  • Note:—RR indicates rate ratio; CT, chemotherapy.

  • ↵a Reference categories are male sex, no chemoradiotherapy. P values were obtained by the hurdle regression model.

  • ↵b For each 4-year increase.