Table 2.

Descriptive statistics and floor/ceiling effects for MOS-HIV domain and summary scores.

Domain scores (0–100)	Mean ± SD	Floor effect (%)	Ceiling effect (%)
General health perceptions	61.17 ± 25.63	0.4	8.2
Physical functioning	86.92 ± 18.41	0	48.8
Role functioning	89.75 ± 27.55	7	86.5
Pain	79.6 ± 20.5	0.4	33.6
Social functioning	86.56 ± 24.2	1.2	69.3
Mental health	61.15 ± 21.72	0.4	3.3
Energy/fatigue	58.61 ± 23.11	0.4	3.3
Health distress	73.22 ± 27.39	1.6	25
Cognitive functioning	74.55 ± 22.81	0.4	17.2
Quality of life	63.83 ± 21.17	0	13.9
Health transition	57.89 ± 23.61	3.3	13.1
Physical health summary	54.49 ± 8.47	—	—
Mental health summary	46.77 ± 11.78	—	—

Physical and mental health summary scores are norm-based T-scores computed with the user’s manual algorithm and are not on the 0–100 metric of the domain scores; floor and ceiling effects are therefore not applicable (—).