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. 2016 Apr 18;9:79–87. doi: 10.2147/CCID.S88485

Table 1.

Main descriptive table

Variables Women (n) Men (n) All, N (%)
Age (years)
 Mean 46.773 48.539 47.422
 Median 48 49 48
 SD 15.594 17.251 16.238
BMI (kg/m2)
 Mean 26.106 25.826 25.926
 Median 25.195 24.988 25.076
 SD 5.388 5.024 5.157
Ethnicity (self-reported)
 White 555 338 893 (66.7%)
 Black 40 17 57 (4.3%)
 Mixed 140 81 221 (16.5%)
Smoking
 No 559 227 786 (58.7%)
 Former smoker 204 188 392 (29.3%)
 Social smoker 9 8 17 (1.3%)
 Yes 75 69 144 (10.8%)
Smoking history
 Never 558 227 785 (58.6%)
 Until 5 years 81 67 148 (11.1%)
 6–10 years 43 34 77 (5.8%)
 11–15 years 26 28 54 (4%)
 >15 years 138 136 274 (20.5%)
Alcohol abuse score (0: abstinent and 6: heavy drinking)
 Mean 1.79 2.113 1.998
 Median 0 0 0
 SD 4.093 5.197 4.832
Sun exposure
 Always 532 186 718 (53.6%)
 Sometimes 46 17 63 (4.7%)
 Never 269 289 558 (41.7%)
Sunscreen use
 Daily 241 33 274 (20.5%)
 Sometimes 184 53 237 (17.7%)
 Occasionally 76 82 158 (11.8%)
 Do not use 346 324 670 (50%)
Hormone replacement therapy
 No 753 0 753 (56.5%)
 Not currently 78 0 78 (5.8%)
 Yes 14 0 14 (1%)
Antiaging treatment 106 6 167 (2.7%)
Total, N (%) 847 (63.256%) 492 (36.744%) 1,339 (100%)

Abbreviations: SD, standard deviation; BMI, body mass index.