Table 1 Characteristics by skin cancer status, the Nambour Skin Cancer Study (N = 1,171)
From: Prospective study of physical activity and risk of squamous cell carcinoma of the skin
Characteristics | Women | Men | ||||
|---|---|---|---|---|---|---|
SCC (n = 90) | No SCC (n = 575) | p-value | SCC (n = 98) | No SCC (n = 408) | p-value | |
Mean (SD) | ||||||
Age (years) | 57.3 (9.9) | 48.1 (12.1) | < 0.001 | 59.7 (11.7) | 48.3 (13.0) | < 0.001 |
BMI, kg/m2 | 26.2 (5.0) | 25.8 (4.7) | 0.515 | 26.6 (3.8) | 26.5 (3.6) | 0.868 |
N (%) | ||||||
History of skin cancer | 48 (53.3) | 123 (21.4) | < 0.001 | 64 (65.3) | 88 (21.6) | < 0.001 |
Education | ||||||
High school only | 63 (70.0) | 366 (63.7) | 0.446 | 37 (37.8) | 167 (40.9) | 0.284 |
Certificate/diploma | 3 (3.3) | 34 (5.9) | 31 (31.6) | 147 (36.0) | ||
University | 22 (24.4) | 147 (25.6) | 22 (22.4) | 59 (14.5) | ||
Trade/other | 2 (2.2) | 28 (4.9) | 8 (8.2) | 35 (8.6) | ||
Pack-years of smoking | ||||||
None | 56 (62.2) | 383 (66.6) | 0.599 | 35 (35.7) | 181 (44.4) | 0.115 |
1-7 | 13 (14.4) | 92 (16.0) | 16 (16.3) | 65 (15.9) | ||
> 7-20 | 10 (11.1) | 49 (8.5) | 13 (13.3) | 67 (16.4) | ||
> 20 | 11 (12.2) | 51 (8.9) | 34 (34.7) | 95 (23.3) | ||
Tanning ability of skin | ||||||
Always burn | 33 (36.7) | 130 (22.6) | 0.003 | 29 (29.6) | 55 (13.5) | < 0.001 |
Burn then tan | 54 (60.0) | 377 (65.6) | 62 (63.3) | 310 (76.2) | ||
Only tan | 3 (3.3) | 68 (11.8) | 7 (7.1) | 42 (10.3) | ||
Painful sunburns throughout life (1992) | ||||||
Never | 10 (11.1) | 62 (10.8) | 0.084 | 15 (15.3) | 48 (11.8) | 0.798 |
Once | 21 (23.3) | 114 (19.8) | 14 (14.3) | 55 (13.5) | ||
2-5 times | 29 (32.2) | 263 (45.7) | 40 (40.8) | 176 (43.2) | ||
More than 5 times | 30 (33.3) | 136 (23.7) | 29 (29.6) | 128 (31.4) | ||
Freckling of the back (1992)a | ||||||
Nil | 18 (20.5) | 197 (35.1) | 0.001 | 19 (19.6) | 125 (32.0) | < 0.001 |
Mild | 29 (33.0) | 215 (38.3) | 25 (25.8) | 137 (35.0) | ||
Moderate | 30 (34.1) | 103 (18.3) | 20 (20.6) | 76 (19.4) | ||
Severe | 11 (12.5) | 47 (8.4) | 33 (34.0) | 53 (13.6) | ||
Clinical elastosis of the neck (1992)a | ||||||
Nil | 5 (5.6) | 160 (27.8) | < 0.001 | 2 (2.1) | 72 (17.7) | < 0.001 |
Mild | 38 (42.2) | 282 (49.0) | 35 (36.1) | 205 (50.4) | ||
Severe | 47 (52.2) | 133 (23.1) | 60 (61.9) | 130 (31.9) | ||