Table 1.

Covariates from the SOF Study used for the investigation of first and second fractures.

Variable in regression	Variable label
thyroid	Doctor ever told you have high thyroid?
stroke	Doctor ever told you have had a stroke?
Parkinson	Doctor ever told you have Parkinson’s disease?
arthritis	Doctor ever told you have arthritis?
diabetes	Doctor ever told you have diabetes?
#faint	Number of times fainted in last 12 months
#fall	Number of falls in last 12 months
bmi	Body mass index (kg/m2)
age	Age at visit 2 (baseline visit)
hipBMD	Total hip BMD (g/cm2)
fnBMD	Femoral neck BMD (g/cm2)
vitamin D	Currently taking Vitamin D once per week
Tums	Currently taking Tums once per week
estrogen	Currently taking estrogen pills
mndepth	Mid near depth perception
lndepth	Low near depth perception
wt-change	Weight change since 25 years old (kgs)
smoke	Smoking status (never, past, current)
exercise	Take walks for exercise?