Mean (SD) unless stated otherwise.
1 Geometric mean and SD.
2 Median and IQR among drinkers. 20 men and 86 women stated that they do not drink alcohol.
3 Standardised score ranging 0-100 derived from frequency of gardening, housework, climbing stairs and carrying loads in a typical week. Higher scores indicate greater level of activity.
4 Social class was unclassified for 28 men.
5 Data on femoral neck BMD and BMC and total femoral BMD and BMC was missing for 3 men and 1 woman.
6 Data on lumbar spine BMD was missing for 1 man.
7 Data on lumbar spine BMC was missing for 3 men and 25 women.