Anogenital Distance in Turkish Newborns

We have measured anogenital distance (AGD) in 300 newborns delivered in Zubeyde Hanim Maternity Hospital in 2007. As in the study by Ozkan et al (1), we also used a sliding caliper for the measurements; however, in the manuscript by Ozkan et al (1), it was mentioned as tape, which needs correction. The results of both Dr Ozkan’s study and ours seem similar. We could not give the results of measurements of anus-anterior penis base distance in male newborns and anus-clitoris base (AC) distance in female newborns. The AGD1 distance in male newborns in our study and in Ozkan et al’s study were 41.8±4.9 mm and 56±1 mm, respectively. The AC distance in female newborns in our study and in Ozkan et al’s study were 35.04±3.34 mm and 30.2±0.2 mm, respectively (unpublished data). Positive correlation of AGD1 and AC with length, head circumference and weight was also found in our study. However, no correlation was found for both the distance from the posterior base of the scrotum to the anus (ASD) in male newborns and the distance from the anus to the fourchette (AF) with same parameters. Our data suggests that the measurement of AGD1 is more reliable than ASD as the posterior border of the scrotum is an anthropometry. Romano-Riquer et al (2) also proposed that the measurement of AGD1 is more reliable than other measurement methods of AGD. The percentile values were calculated for AGD of male and female newborns in our study. For female newborns, the 3rd, 5th, 10th, 25th, 50th, 75th, 90th, 95th and 97th percentile values for AF distance were