Table 2: Proportion of variance in BMD in Development Cohort 1 (fracture patients, , age 45 79) and Development Cohort 2 (FPS, , age 65 72). value (%), explained by the risk factors in univariate regression models, and by MOI, FI, and OST-scores.

Fracture patients
; BMD-N ; BMD-H ; BMD-S

Weight, continuous0.14***0.19***0.12***
Weight, categorized0.13***0,17***0.12***
Age, continuous0.13***0.07***0.01
Age, categorized0.12***0.07***0.0
Shortening, continuous0.08***0.06***0.02*
Shortening, categorized0.05***0.03*0.01
Family history0.010.00.0
Smoking0.00.010.01
Rise from a chair test0.00.02*0.0
MOI0.22***0.22***0.0
FI0.08***0.07***0.0
OST0.25***0.25***0.0

FPS
; BMD-N ; BMD-H ; BMD-S

Weight, continuous0.05***0.12***0.09***
Weight, categorized0.06***0.12***0.09***
Age, continuous
Age, categorized
Shortening, continuous0.01*0.010.01
Shortening, categorized0.03***0.03***0.02**
Fracture history0.03***0.03***0.04***
Family history0.00.01*0.0
Smoking0.00.00.01
Rise from a chair test0.00.02*0.0
MOI0.11***0.17***0.11***
FI0.04***0.06***0.03**
OST0.06***0.12***0.19***

MOI: Mikkeli Osteoporosis Index; FI: Fracture Index; OST: Osteoporosis Self-Assessment Tool. Other abbreviations, see Table 1.