Table 2.

Differences in summary and domain mean scores of the SF-36 for HRQoL between SLE cases and related controls (Rheumatology outpatient clinic, Alexandria University Hospital, Alexandria, 2020).

Scale		Cases	Controls	U (p-value)
PF	Median ± IQR	45 ± 30	85 ± 40	88.5*
	Mean rank	18.05	39.72
RP	Median ± IQR	0	100	0.5*
	Mean rank	15.02	42.98
RE	Median ± IQR	0	100	15*
	Mean rank	15.52	42.44
BP	Median ± IQR	41 ± 19	74 ± 38	63.5*
	Mean rank	17.19	40.65
VIT	Median ± IQR	45 ± 25	70 ± 20	66*
	Mean rank	17.28	40.56
SF	Median ± IQR	50 ± 31.25	87.5 ± 25	77*
	Mean rank	17.66	40.15
GH	Median ± IQR	25 ± 17.5	62 ± 10	28.5*
	Mean rank	15.98	41.94
MH	Median ± IQR	44 ± 26	64 ± 16	91.50*
	Mean rank	18.16	39.61
PCS	Median ± IQR	28.81 ± 16.63	77.25 ± 15.75	11*
	Mean rank	15.38	42.59
MCS	Median ± IQR	32.75 ± 18.69	78.75 ± 10.63	40*
	Mean rank	16.38	41.52

IQR interquartile range, U Mann–Whitney non-parametric test, PF physical functioning, RP role physical, RE role emotional, BP bodily pain, VIT vitality, SF social functioning, GH general health, MH mental health, PCS physical component score, MCS mental component score.

*p < 0.001.