Table 1.

Characteristics of SCC cases and controls, Tampa, FL, 2007 to 2009

SCC cases (n = 173)Controls (n = 300)
Characteristicn%n%Pa
Age, y (mean, SD)64.4(9.9)55.4(11.7)<0.0001
Sex
 Male11465.911438.0
 Female5934.118662.0<0.0001
Education
 ≤12 y3321.4299.8
 >12 y12178.626790.20.001
Smoking statusb
 Never smoker4730.715049.8
 Ever smoker10669.314950.2<0.0001
Alcohol consumptionb
 1+ drinks in past year12279.726087.3
 No drinks in past year3120.33812.80.04
Eye colorb
 Blue6240.58528.6
 Green2415.74816.2
 Hazel3019.64816.2
 Light brown1711.13511.8
 Dark brown2013.18127.30.01
Hair colorb
 Black/brown10266.223478.3
 Blond/red5233.86521.70.01
Skin's reaction to repeated sun exposureb
 Unable to tan2516.3227.5
 Can tan if you work at it7247.19933.6
 Tans easily5636.617459.0<0.0001
History of a blistering sunburnb
 Yes11877.120268.0
 No3522.99532.00.04
Ever had a job in the sun for 3+ monthsb
 Yes7649.48127.3
 No7850.721672.7<0.0001
  • aP values obtained from χ2 tests comparing characteristics of SCC with controls, except for age, which was compared between SCC cases and controls by the Wilcoxon rank-sum test.

  • bNumbers do not sum to the total because of missing data on these factors.