Table 1.
Demographic characteristics for individuals with global volume data, including lifestyle variables and MDD. “-“ indicates that there was no data of the sort for the respective dataset. Former smokers at the baseline measurement were split into those who quit less than a year ago and those who quit more than a year ago; at the concurrent timepoint, this division is not made.
| Demographic characteristics | Baseline (N = 672) | Concurrent set 1 (N = 331) | Concurrent set 2 (N = 234) |
|---|---|---|---|
| Age – Mean (SD), range | 52.29 (9.93), 18–75 | 60.45 (8.42), 28–78 | 59.61 (10.21), 28–81 |
| Sex | |||
| Female | 406 | 193 | 132 |
| Male | 266 | 138 | 102 |
| Set | |||
| 1 | 621 | - | - |
| 2 | 51 | - | - |
| BMI – Mean (SD), range | 27.13 (4.96), 15.96–56.60 | 27.48 (5.18), 16.42–51.75 | 28.23 (5.31), 19–20-52.81 |
| Alcohol units – Mean (SD), range | 10.53 (16.44), 0–326 | 7.12 (8.91), 0–60 | 7.39 (9.67), 0–60 |
| Smoking status | |||
| Current smoker | 83 | 16 | 12 |
| Former smokers (quit < 1 year ago) | 10 | 124 | 92 |
| Former smokers (quit > 1 year ago) | 208 | ||
| Never smoked tobacco | 371 | 191 | 130 |
| Pack years – Mean (SD), range | 7.59 (14.56), 0–111 | - | - |
| Cigarettes smoked/week | |||
| 1–10 cigarettes | - | 10 | 6 |
| 11–20 cigarettes | - | 10 | 9 |
| MDD status | |||
| Cases | 121 | 83 | 83 |
| Controls | 551 | 248 | 151 |