loadings of the variables and no correlation between the
components over 0.3 was found. The first component,
called reduced mobility, included the factors indoor
adaptation, osteoarthritis of hip and/or knee, low walking
speed and impaired mobility. It explained 21.3% of
the variance and had an OR for falling of 2.12 (95% CI
1.54–2.91). The second component, consisting of heart
disease, heart failure with symptoms and the use of fall
risk drugs, was called heart dysfunction, and explained
11.2% of the variance with an OR for falling of 1.66 (95%
CI 1.26–2.20). The final component, called functional
impairment, included dependence in pADL and nocturia,
and explained 9.8% of the variance, with an OR for
falling of 1.38 (95% CI 1.01–1.88).