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Characteristics of the study populations.
| 31 years study N (%) (‘Cohort 31’) |
46 years study N (%) (‘Cohort 46’) |
Longitudinal studya N (%) (‘Longitudinal sub-population’) |
|
|---|---|---|---|
| Total | 5484 | 5373 | 3409 |
| Men | 2733 (49.8) | 2394 (44.6) | 1572 (46.1) |
| Women | 2751 (50.2) | 2979 (55.4) | 1837 (53.9) |
aSub-population of those participants who had non missing SPT data on both time points (31 and 46 years).
