Table 1.

RRs and 95% CIs of NHL according to pigmentary characteristics

CharacteristicNo. of casesAge-adjustedMultivariate*
RR (95% CI)RR (95% CI)
Hair color (n = 101,633)
    Dark brown, black231.001.00
    Brown791.85 (1.16-2.93)1.72 (1.08-2.74)
    Blond, yellow/red541.43 (0.88-2.32)1.23 (0.75-2.01)
P = 0.02P = 0.03
Eye color (n = 101,323)
    Brown331.001.00
    Gray, green, or mixed510.51 (0.33-0.80)0.50 (0.32-0.77)
    Blue720.55 (0.36-0.82)0.54 (0.35-0.81)
P = 0.01P = 0.01
Skin color after heavy sun exposure in the beginning of the summer (n = 104,178)
    Brown501.001.00
    Red790.83 (0.58-1.19)0.84 (0.59-1.19)
    Red with pain/red with pain and blisters280.56 (0.35-0.88)0.57 (0.36-0.91)
P = 0.05P = 0.04
Skin color after repeated sun exposure (n = 101,923)
    Deep brown271.001.00
    Brown1001.01 (0.66-1.54)1.02 (0.67-1.56)
    Light brown/never brown300.74 (0.44-1.24)0.71 (0.42-1.20)
P = 0.29P = 0.20

NOTE: Poisson regression analysis. All statistical tests were two-sided.

  • *Multivariate models included attained age and region of residence.