Table 7. Comparison of WHODAS 2.0, SBC, and FSS in patients with and without fatigue, dyspnea, and MSK complaints.

N, no. of patients; SBC, single breath count; FSS, fatigue severity scale; WHODAS 2.0, WHO Disability Assessment Schedule 2.0; MSK, musculoskeletal

Symptoms	Group	N	SBC statistic	FSS statistic	WHODAS 2.0 statistic
Fatigue	Present	60	Z=0.3.423 p=0.001	Z= -6.473 p<0.001	Z= -4.911 p<0.001
	Absent	37
Dyspnea	Present	56	Z=0.2.36 p=0.018	Z= -4.918 p<0.001	Z= -4.287 p<0.001
	Absent	41
MSK complaints	Present	36	Z=-1.2 p= 0.230	Z= -1.03 p= 0.303	Z= -0.5 p= 0.611
	Absent	61