Socio-demographic characteristics and clinical parameters of participants
SD
At baseline, a total of 90 participants were included in this study (45 participants in the PRP and 45 in the steroid group). However, after six months of follow-up, a total of 87 participants completed the study (45 participants in the PRP group and 42 participants in the steroid group), whereas three participants lost follow in the steroid group, and none of the participants discontinued the trial in the PRP group (Fig. The majority, 76 (84.4%), were female, and 14 (15.6%) were male. The mean ± SD age of the participants was 43.8 ± 10.9 years (42.9 ± 10.3 in the PRP group and 44.7 ± 11.6 in the steroid group). Almost two-thirds of the participants (75.6%) were 
Demographic characteristics and clinical parameters of participants