Table 1.

Demographic and clinical characteristics of the control and case groups

Variable	All Groups	Control Group	FMF Group	p-value	Test
Age (years)	31.9 ± 9.9	31.8 ± 9.6	32.0 ± 9,9	0.929	m
Gender, n%					X²
- Male	57	30 (%40)	27 (%35.1)	0.530
- Female	95	45 (%60)	50 (%64.9)
BMI	23.4 ± 1.8	23.5 ± 1.8	23.4 ± 1.9	0.816	t
Creatinine	0.65 ± 0.14	0.62 ± 0.15	0.66 ± 0.13	0,264	m
eGFR	116.2 ± 22.7	111.2 ± 19.8	121.1 ± 24.4	0.002	m
Left RRI	0.64 ± 0.07	0.62 ± 0.06	0.66 ± 0.08	0.010	m
Right RRI	0.64 ± 0.07	0.62 ± 0.06	0.66 ± 0.08	0.006	m
RRI mean	0.64 ± 0.07	0.62 ± 0.06	0.66 ± 0.08	0.010	m
RRI mean ≥ 0,7, n%	33(%21.7)	4(%5.33)	29(%37.7)	0.000	X²
Left PI	1.14 ± 0.33	1.05 ± 0.26	1.24 ± 0.37	0.002	m
Right PI	1.13 ± 0.34	0.97 ± 0.17	1.29 ± 0.38	0.000	m
PI mean	1.14 ± 0.32	1.01 ± 0.19	1.27 ± 0.37	0.000	m
PI mean > 1.4	31(%20.4)	4(%5.3)	27(%35.1)	0.000	X²

Values are presented as mean ± standard deviation or median (interquartile range), as appropriate

Statistical tests: m, Mann–Whitney U test; χ², chi-square test; t, Student’s t-test

Abbreviations: FMF, familial Mediterranean fever; BMI, body mass index; RRI, renal resistive index; PI, pulsatility index; eGFR, estimated glomerular filtration rate