Table 1 Age and sex of participants, stratified by family role
From: Increases in alcohol consumption in women and elderly groups: evidence from an epidemiological study
| Â | N ind | % women | Mean age (sd) |
|---|---|---|---|
Twins | 8,093 | 68.8 | 33.5 (14.5) |
Higher-order multiples (triplets/quadruplet) | 155 | 70.3 | 25.9 (11.9) |
Parents of twins | 5,198 | 59.2 | 55.9 (8.1) |
Spouses | 875 | 38.7 | 44.3 (11.8) |
Non-twin siblings | 1,898 | 63.4 | 38.3 (13.9) |
Other1 | 368 | 64.4 | 33.8 (10.1) |
Total | 16,587 | 63.5 | 41.6 (16.0) |