Background: Fear of falling (FoF) is a common health problem among older adults. Although the relationship between FoF and limitation in daily activities has been reported, FoF's relationship to mobility disability, a transitional phase to end-stage disability, is not yet understood. We examined the relationship between FoF and mobility disability among community-dwelling older adults and explored the differences in this relationship among socio-culturally diverse sites.
Design: Cross-sectional study.
Setting: Community.
Participants: 1875 participants (65-74 years) were recruited from five sites and included in the analysis (Kingston, Canada: 394; St-Hyacinthe, Canada: 397; Tirana, Albania: 359; Manizales, Colombia: 341; and Natal, Brazil: 384).
Measurement: FoF was quantified using the Falls Efficacy Scale-International (FES-I, range: 16-64). Mobility disability was defined as difficulty climbing a flight of stairs or walking 400m without assistance.
Results: Overall, 21.5% of participants reported high FoF (FES-I>27). The average FoF scores were significantly different between the sites (p<0.001) and higher in women (p<0.001). In general, 36.2% of participants reported mobility disability. The distribution of mobility disability was significantly different at the five study sites (ranged from 19.8% at Kingston, Canada to 50.7% at Tirana, Albania, p<0.001). After adjusting for covariates, those with high and moderate FoF had about 3 times (95% CI: 2.59-3.83) and 2.5 times (95% CI: 1.99-2.91) higher risk of mobility disability, respectively, compared to those with no/low FoF.
Conclusions: FoF was significantly associated with risk of mobility disability across the sites. The strength of this relationship appears to be different between the five sites.
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