The mean and SD for gestacional age was 38,9 + 1,4 weeks (range from 33 to
42 weeks). The weight was 3.151 + 0.446g (range from 1.830 a 4.815g) and the
length 48,4 + 2,1cm (range from 40 to 56cm).
Penile lengh was determined from the pubis to the tip of the glans penis by
placing the end of a ruler against the pubic ramus and applying traction along the
length of the phallus to the point of increased resistance. The location of the tip of
the glans penis was determined by palpation, as all infants were measured without
circumcision. The average size of the penis was 3,36 + 0,44cm (range from 1,8 to
5,1cm). The spontaneous direction of penile shaft was in the midline in 69,9%,
deviated to the left in 18,4% and deviated to the right side in 11,7%. The prepuce
was present in all newborns and when part of the gland was visible the prepuce was
defined as short (12,2%). The meatus was visible in 25,6% and its direction,
estimated in degrees, was in the midline in 88,7%, 45° counterclockwise in 10,8%
and 90° in 0,5%. A hypospadic meatus was found in 4,1% and were distal in 88,9%.
The median raphe was deviated from the midline in 20,7%. The testis were non
palpable in only 1,8%, 17 newborns had unilateral undescended testis, eight on the
right and nine on the left. Only two newborns had bilateral undescended testis. In
19,6% of the boys we found hydrocele.
In girls, the distance from the center of the anus to the the base of the clitoris
and the distance from the center of the anus to the fourchette were measured with the
baby´s hips and knees flexed and open, using an flexed ruler. The AF measure was