Table 2.

 Results of drug tests throughout monitoring period for 647 physicians who completed their contract with a physician health programme or had it extended

Variable	Completed contract (n=515)	Contract extended (n=132)	Both groups (n=647)
Average duration of contract (months)	54	64	56
Mean No of drug tests per physician	82	121	94
No (%) with at least one positive drug test result	57 (11)	69 (52)	126 (19)
No (%) with a repeat positive result*	8 (16)	25 (38)	33 (26)

*Percentage of those with one positive test result.