Table 1.

Profile of office-based physicians with and without methadone substitution treatment

	PT (n = 352)	PWT (n = 231)	X2, p value
Male	84.9%	82.7%	X2 = 0.4; p = 0.563
Practice in a town with >10,000 inhabitants	60%	66.2%
Practice in a town with <10,000 inhabitants	40%	33.8%	X2 = 2.3; p = 0.136
Works alone	57.9%	65.7%
Works in a group practice (with other doctors)	42.1%	34.3%	X2 = 3.5; p = 0.068
Median no. of years in practice* (mean SD)	15 (14.8 ± 7.4)	17 (17 ± 8.6)	Z = -3.2; p = 0.001

PT = General practitioners with patients receiving methadone substitution treatment

PWT = General practitioners without patients receiving methadone substitution treatment

*P value was calculated using the Mann-Whitney test; other P values were calculated using Fisher's exact test