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Table 3 symptoms duration before surgery

From: Assessment of the effect of platelet rich plasma on the healing of operated sacrococcygeal pilonidal sinus by lay-open technique: a randomized clinical trial

Duration of symptoms (months) Group A Group B P-value
(mean ± SD) 9.33 ± 3.61 9 ± 3.94 0.8 (NS)
Range 5–17 5–18