Table 1.

Distribution of Participants in the Three Activity-Restriction Groups at the Baseline and at 3-Year Follow-Up

	Baseline	Follow-Up
Session	n (%)
Interview
No activity restriction	172 (25.5)	145 (27.0)
Moderate activity restriction	401 (59.6)	315 (58.7)
Severe activity restriction	100 (14.9)	77 (14.3)
Total	673 (100.0)	537 (100.0)
Physical performance assessment
No activity restriction	155 (26.5)	131 (27.6)
Moderate activity restriction	348 (59.6)	278 (58.6)
Severe activity restriction	81 (13.9)	65 (13.7)
Total	584 (100.0)	474 (100.0)