Fig 2.

Median pain scores during or after intercourse as recorded in weekly diaries using the Numeric Rating Scale. Black horizontal lines indicate medians; colored boxes indicate the values of the interquartile range (IQR) between Q1 (the 25th) and Q3 (the 75th) percentiles. Vertical black lines indicate the ranges between Q3 + 1.5 IQR and Q1 − 1.5 IQR. Black diamonds are outliers. At enrollment, patients assigned to saline versus lidocaine did not differ significantly from each other (P = .61). During the blinded weeks, the two groups differed significantly (P = .01), and later during the open-label weeks, the two groups again did not differ (P = .41). During the open-label lidocaine period, each group had a median score that was significantly lower than baseline (P < .001).