Odds ratios of SCC by quartile of plasma vitamin D concentrations in NHS and NHS II.

aAdjusted for age at blood draw, season of blood draw, lab batch.bAdjusted for age at blood draw, season of blood draw, lab batch, hair color, burning tendency, numbers of sunburns.cAdjusted for age at blood draw, season of blood draw, lab batch, hair color, burning tendency, numbers of sunburns, UVB flux.dAdjusted for age at blood draw, season of blood draw, lab batch, cohort.eAdjusted for age at blood draw, season of blood draw, lab batch, cohort, hair color, burning tendency, numbers of sunburns.fAdjusted for age at blood draw, season of blood draw, lab batch, cohort, hair color, burning tendency, numbers of sunburns, UVB flux.