Table 4.

Adjusted proportions^a (score < 50), according to the frailty groups at 3 months and 6 months

	Proportion (95 % CI)	Standard of Error	P value
Physical Component Summary SF-12 scoreb
3 months
- Very fit--well	26.6 (19.1–36.9)	4.5
- Well + comorbid--Apparently vulnerable	21.7 (14.9–31.7)	4.2	0.4
- Mildly frail--Moderately frail	46.7 (32.1–67.9)	8.9	0.02
6 months
- Very fit--well	16.8 (10.9–25.9)	3.7
- Well + comorbid--Apparently vulnerable	34.4 (24.8–47.7)	5.7	0.006
- Mildly frail--Moderately frail	40.3 (27.5–59.1)	7.9	0.003
Mental Component Summary SF-12 scorec
3 months
- Very fit--well	12.4 (7.4–20.7)	3.3
- Well + comorbid--Apparently vulnerable	18.9 (11.3–31.2)	4.9	0.2
- Mildly frail--Moderately frail	29.7 (16.6–53.4)	8.9	0.01
6 months
- Very fit--well	10.1 (5.7–17.8)	2.9
- Well + comorbid--Apparently vulnerable	9.1 (4.4–19.0)	3.4	0.8
- Mildly frail--Moderately frail	25.9 (14.1–47.5)	8.0	0.01

^aobtained by sensitivity analyses were conducted using a general estimating equations approach

^bAdjustments based on age, schooling, comorbidities, use of walking aid, baseline IADL score, and number of outings per week

^cAdjustments based on schooling, income, comorbidities, use of walking aid, cognitive status, and fear of falling