Table 2.

Signs and symptoms related to opioid withdrawal and psychological distress.

	SROM Mean± SD (median)			Methadone Mean± SD (mMedian)
	Day 0 (n= 102)	Day 22 (n= 52)	P	Day 0 (n= 99)	Day 22 (n= 50)	P
SOWS	8.07 ± 6.09 (7.00)	18.32 ± 8.98 (18.00)	<0.001	8.15 ± 6.48 (7.00)	16.00 ± 7.81 (15.00)	<0.001
SCL-90-R: Global Severity Index (GSI)	0.70 ± 0.56 (0.6)	0.74 ± 0.56 (0.58)	0.326	0.77 ± 0.58 (0.61)	0.67 ± 0.51 (0.52)	0.511

SCL: Symptom Checklist; SROM: slow-release oral morphine; SOWS: Short Opioid Withdrawal Scale; SD: standard deviation.