Graphic representation of the distribution of NIPS scores among the three treatment groups. Data are presented as the percent of infants in each treatment group receiving a NIPS score in the defined interval. All infants circumcised without anesthesia received a score of 6 throughout the procedure, whereas only 1 infant who received anesthesia before circumcision (EMLA) received a score of 6.
Mean NIPS scores during circumcision in three groups of infants, EMLA-treated (open circles), DPNB (closed circles), and no anesthesia (x with dotted line). Events during circumcision that were scored included: I, clamping of the foreskin; II, lysis of adhesions between foreskin and glans; III, dorsal incision of the foreskin; IV, lysis of adhesions between foreskin and glans; V, tying PlastiBell; and VI, cutting of the foreskin. The higher the score, the greater the behavioral manifestation of pain. Bars indicate ±SEM.