Table 2.

Characteristics of Physicians

Characteristics	Participants n = 21	Nonparticipants n = 98	PValue
Male, %	57.1	50.0	.63*
Private practice, %	76.2	84.7	.35*
Urban area, %	90.5	81.6	.52*
Years in practice, No.	17.4	16.6	.30†

* Fisher’s exact test.

† Student t test.