Table 2.
Study 2: characteristics of patients with melanoma among couples in the mortality analysis
| U.K. | Denmark | |
|---|---|---|
| Total | 3597 | 24 911 |
| Age (years) | ||
| Range | 32·8–99·0 | 18·3–99·5 |
| Median (IQR) | 67·2 (58·2–75·5) | 58·7 (45·3–69·8) |
| Groups | ||
| < 50 | 283 (7·9) | 8276 (33·2) |
| 50–59 | 782 (21·7) | 4888 (19·6) |
| 60–69 | 1092 (30·4) | 5633 (22·6) |
| 70–79 | 958 (26·6) | 4051 (16·3) |
| ≥ 80 | 482 (13·4) | 2063 (8·3) |
| Sex | ||
| Female | 1606 (44·7) | 13 035 (52·3) |
| Male | 1991 (55·4) | 11 876 (47·7) |
| Comorbidity burdena | ||
| Low | 1858 (51·7) | 20 254 (81·3) |
| Intermediate | 1117 (31·1) | 3847 (15·4) |
| High | 622 (17·3) | 810 (3·3) |
| Smoking statusb | ||
| Never smoked | 1415 (39·3) | NA |
| Formerly smoked | 1559 (43·3) | NA |
| Currently smokes | 595 (16·5) | NA |
| Missing | 28 (0·8) | NA |
| Alcohol consumptionb | ||
| Never drank | 236 (6·6) | NA |
| Formerly drank | 266 (7·4) | NA |
| Currently drinks | 2832 (78·7) | NA |
| Never drank | 263 (7·3) | NA |
| Body mass index (kg m−2)b | ||
| < 18·5 | 43 (1·2) | NA |
| 18·5–24·9 | 1172 (32·6) | NA |
| 25–29·9 | 1405 (39·1) | NA |
| ≥ 30 | 754 (21·0) | NA |
| Missing | 223 (6·2) | NA |
| Index of Multiple Deprivationb | ||
| 1 (least deprived) | 1099 (30·6) | NA |
| 2 | 1019 (28·3) | NA |
| 3 | 788 (21·9) | NA |
| 4 | 522 (14·5) | NA |
| 5 (most deprived) | 169 (4·7) | NA |
| Education duration (years)c | ||
| Short (7–10) | NA | 5909 (23·7) |
| Medium (11–12) | NA | 10 410 (41·8) |
| Long (≥ 13) | NA | 7563 (30·4) |
| Missing | NA | 1029 (4·1) |
| Melanoma stage at diagnosisc | ||
| Localized | NA | 18 575 (74·6) |
| Regional | NA | 1500 (6·0) |
| Distant | NA | 254 (1·0) |
| Unknown | NA | 4582 (18·4) |
| Follow‐up (years) | ||
| Total | 17 625 | 154 189 |
| Median (IQR) | 3·5 (1·4–6·8) | 5·0 (2·2–9·3) |
The data are presented as n (%) unless stated otherwise. IQR, interquartile range; NA, not applicable. aComorbidity burden was measured using the Charlson Comorbidity Index. Comorbidity burden was determined on the index date using the Charlson Comorbidity Index score, categorized as low (0 point), intermediate (1–2 points) or high (≥ 3 points). bInformation on smoking status, alcohol consumption, body mass index and Index of Multiple Deprivation was not available in Denmark. cInformation on education duration and melanoma stage at diagnosis was not available in the U.K.