Table 3.

Comparison of mean Doppler indices between MS and control patients

Patients using IFN-β ±GA	MS (n=19)	Control (n=25)	P value
RI	0.49 (0.39–0.80)	0.46 (0.34–0.60)	0.195
PI	0.79 (0.65–1.28)	0.74 (0.56–1.14)	0.098
S/D	1.94 (1.68–3.20)	1.89 (1.51–2.68)	0.222
PSV (cm/s)	10.88 (4.20–16.40)	7.78 (5.05–20.20)	0.601
Patients using only IFN-β	MS (n=15)	Control (n=25)	P value
RI	0.51 (0.41–0.80)	0.46 (0.34–0.60)	0.070
PI	0.85 (0.69–1.28)	0.74 (0.56–1.14)	0.038
S/D	1.94 (1.68–3.20)	1.89 (1.51–2.68)	0.111
PSV (cm/s)	11.23 (4.20–16.40)	7.78 (5.05–20.20)	0.515

Note: Data are median (range)

RI: Resistance index. PI: Pulsatility index. S/D: Systolic/diastolic ratio. PSV: Peak systolic velocity

Statistics were conducted by Mann Whitney-U test