Table 2. General health status and functional impairment (RAND-36 health survey).

Scores are means±S.E.M.; range 0–100. Low scores indicate more severe conditions.

Scale	Non-CFS–POTS (n=17)	CFS–POTS (n=30)	P value
Physical health
Physical functioning	40.1±4.1	32.8±3.1	0.153
Role limitation due to physical health	2.9±2.9	0.9±0.9	0.676
Bodily pain	65.8±6.1	54.1±3.7	0.057
Mental health
Emotional well-being	66.1±4.9	68.0±3.4	0.796
Role limitation due to emotional problems	39.6±11.5	37.9±8.6	0.844
Other
General health	31.8±3.7	27.8±2.4	0.351
Energy/fatigue	31.5±6.1	16.8±3.0	0.037
Social functioning	36.8±5.9	32.6±5.1	0.499