. Author manuscript; available in PMC: 2015 Mar 1.

Published in final edited form as: AIDS Behav. 2014 Mar;18(3):443–451. doi: 10.1007/s10461-013-0664-0

Table V.

Sexual transmission risk of HIV by partner type across historical periods among PWID entering the drug detoxification and methadone maintenance programs at Beth Israel Medical Center in New York City (1990–2012)

	Historical Period
	1990–1994	1995–1999	2000–2006	2007–2012
	n/N (%)	n/N (%)	n/N (%)	n/N (%)	Test value, df (p)
Sexual Transmission Risk to primary sexual partner^*	169/1224 (14)	116/1889 (6)	101/2996 (3)	19/1030 (2)	−13.49, 3 (<0.001)
Sexual Transmission Risk to casual sexual partner^*	74/1224 (6)	33/1889 (2)	28/2996 (1)	6/1030 (1)	−9.94, 3 (<0.001)

Significant trend (p<0.05) over time (non-parametric trend test)