Table 5.

Association of knee buckling without a fall and buckling with a fall at baseline with poor balance confidence and fear of falling at 84 months

Baseline exposure/predictor (n)	Poor balance confidence** at 2 year follow-up†		Fear of falling at 2 year follow-up†
Buckling/falls due to buckling in past 3 months	N (%)	OR (95% CI)	N (%)	OR (95% CI)
No buckling (1305)	121 (9.3)	ref	401 (30.7)	ref
Buckled, did not fall when knee gave way (195)	54 (27.7)	2.18 (1.35-3.52)	98 (50.3)	1.54 (1.08-2.20)
Buckled and fell when knee gave way (44)	23 (52.3)	4.17 (1.80-9.68)	28 (63.6)	2.10 (1.02-4.33)

* See footnote in Table 2 for variables included in models.

^**Activities-specific Balance Confidence (ABC) Scale score < 67.

^†84 month clinic visit. N in each exposure group rellects loss to follow-up and missing data at 84 months. The number of participants is smaller than in Table 4 due to collection of data on these outcomes at the clinic visit only..