Table 3.

Adjusted odds-ratios of STD between users and non-users of erectile dysfunction drugs

	Months after first ED drug fill
	3 mo.	6 mo.	9 mo.	12 mo.
Chlamydia (%)	5.01† (1.92 – 13.02)	1.99 (0.85 – 4.64)	2.11† (1.06 – 4.18)	1.60 (0.81 – 3.84)
Gonorrhea (%)	1.04 (0.13 – 7.99)	1.42 (0.34 – 5.86)	0.99 (0.24 – 4.27)	1.13 (0.35 – 3.56)
Herpes (%)	0.97 (0.43 – 4.21)	0.84 (0.36 – 4.02)	0.64 (0.87 – 4.63)	1.74 (0.63 – 4.77)
HIV (%)	1.97† (1.08 – 3.59)	2.33† (1.52 – 3.57)	2.37† (1.50 – 3.37)	4.27† (2.73 – 6.65)
Syphilis (%)	1.18 (0.16 – 9.01)	0.57 (0.08 – 4.23)	1.56 (0.54 – 4.47)	1.84 (0.76 – 4.14)
Other (%)	0.87 (0.11 – 7.19)	2.55 (0.88 – 7.36)	1.88 (0.67 – 5.29)	2.23 (0.97 – 5.27)
All (%)	1.83† (1.15 – 2.90)	1.83† (1.31 – 2.56)	1.72† (1.26 – 2.34)	2.06† (1.56 – 2.74)

Notes:

^† p < 0.05. 95% confidence intervals in parentheses. STD rates were computed for users by quarter after first ED drug fill and compared to a control group of randomly selected non-users during this same period. Odds-ratios were adjusted for age, pre-existing STDs, and other co-morbidities (results not shown in table).