Table 3.

Short Form-36 Physical Function and Bodily Pain Domain Scores

Domain Scale	Item	Group						F Value	P Value
		Functional Ankle Instability			Uninjured
		Mean ± SD	95% Confidence Interval	Percentage Reporting Impairment	Mean ± SD	95% Confidence Interval	Percentage Reporting Impairment
Physical functioninga
	Vigorous activities	2.58 ± 0.56	2.38, 2.78	38	2.82 ± 0.46	2.65, 3.00	15	3.930	.052
	Moderate activities	2.97 ± 0.17	2.91, 3.03	3	3.00 ± 0.00	NA	0	1.031	.314
	Lift, carry groceries	2.94 ± 0.24	2.85, 3.03	6	3.00 ± 0.00	NA	0	2.128	.149
	Climb several stair flights	2.79 ± 0.42	2.64, 2.94	20	2.97 ± 0.17	2.91, 3.03	3	5.603	.021
	Climb 1 stair flight	2.97 ± 0.17	2.91, 3.03	3	3.00 ± 0.00	NA	0	1.031	.314
	Bend, kneel, stoop	2.76 ± 0.44	2.60, 2.92	24	3.00 ± 0.00	NA	0	10.555	.002
	Walk more than 1 mi (1.6 km)	2.88 ± 0.33	2.76, 2.99	12	3.00 ± 0.00	NA	0	4.550	.037
	Walk several hundred yards	2.94 ± 0.24	2.85, 3.03	6	3.00 ± 0.00	NA	0	2.128	.149
	Walk 100 y (91.4 m)	2.97 ± 0.17	2.91, 3.03	3	3.00 ± 0.00	NA	0	1.031	.314
	Bathe or dress	3.00 ± 0.00	NA	0	3.00 ± 0.00	NA	0	NA	NA
Bodily painb
	Pain magnitude	5.01 ± 0.81	4.76, 5.26	88c	5.64 ± 0.60	5.54, 5.74	38d	12.626	.001
	Pain interference	3.82 ± 1.07	3.43, 4.21	89e	5.12 ± 1.17	4.92, 5.32	39f	22.294	.000

Abbreviation: NA, not applicable.

^aScored 1–3.

^bScored 1–6.

^cPercentage reporting very mild to moderate pain (no participant reported greater than moderate pain).

^dPercentage reporting very mild to mild pain (no participant reported greater than mild pain).

^ePercentage reporting “a little bit” to “quite a bit” of pain interference with “normal work” (no participant reported greater than “quite a bit” of interference).

^fPercentage reporting “a little bit” to moderate pain interference with “normal work” (no participant reported greater than moderate interference).