Table 1.

Prevalence rates (percentages in parenthesis) and correlations of exhibiting/reporting limitations in three areas of physical functioning

	n a	Performance-based limitations	Self-assessed limitations	Kappa	Standard error
Lower body function	430	76 (17.7%)	80 (18.6%)	0.50***	0.054
Upper body function	479	47 (9.8%)	42 (8.8%)	0.22***	0.067
Vision	488	61 (12.5%)	72 (14.8%)	0.56***	0.055

***P≤0.001; **P≤0.01; *P≤0.05; †≤0.10

^aDue to the nature of the performance test assessing lower body function, participants unable to stand without support were excluded (this group included a significant portion of the cognitively impaired). Combined with a somewhat higher rate of refusals, this explains the lower rate of participation for lower body function. A small number of bedridden participants were also excluded from the performance tests measuring body function