1. Incidence rate information by study.

Study	(A) Freqs	(A) Aver. Exposure	(A) Total p/yrs	(A) Notes	(N) Freqs	(N) Aver. Exposure	(N) Total p/yrs	(N) Notes
M+F‐
Allen 1992	0/4	2.107*	8.4	*estimated from total reported M+F‐ exposure	4/10	2.107*	21.1	*estimated from total reported M+F‐ exposure
deVincenzi (ESG) 1994	0/83	2.038*, 2.013**	169.2*, 167.1*	*estimated from total reported M+F‐ and F+M‐ exposure **calculated by subtracting total reported f/u for some/never from reported total f/u
Hira 1997	0/30	1.506*	45.2	*estimated from total reported M+F‐ exposure
Kamenga 1991	1/50	1.258*	62.9	*estimated from total reported M+F‐ exposure
Laurian 1989	0/14	2.000	28.0
Musicco (ISG) 1994	5/243*	1.492*	362.5	*the total count (243) includes abstainers
Peterman 1988					10/51	2.883*	147.0	*weighted mean time from IC's transfusion to IC's diagnosis (Table 1)
Saracco (ISG) 1993					8/79	1.763	139.3
van der Ende 1988	0/2*	3.000	6.0		0/8*	3.000	24.0	*frequencies from table
Henry					1/1	0.006	0.006
F+M‐
Allen 1992	0/5	2.304*	11.5	*estimated from total reported F+M‐ exposure	2/3	2.304	6.9	*estimated from total reported F+M‐ exposure
deVincenzi (ESG) 1994	0/41	2.038*, 2.013**	83.6*, 82.5**	*estimated from total reported M+F‐ and F+M‐ exposure **calculated by subtracting total reported f/u for some/never from reported total f/u
Kamenga 1991	3/56	1.308 R	73.2	*estimated from total reported F+M‐ exposure
Peterman 1988					2/23	2.625*	60.4	*weighted mean time from IC's transfusion to IC's diagnosis (Table 1)
DIR UNKNOWN
Deschamps 1996	1/42	2.405	101		13/90	2.059*	185.3	*calculated from total p/yrs for sometimes & never users
Fischl 1987	1/10	0.854*	8.54	*calculated by adding total exposure time for sexually active partners, from Table1
O'Brien 1994					0/2	2.5*	5.0
Siddiqui 1992	0/7	1.065*	7.5	*estimated from total reported M+F‐ and F+M‐ exposure	0/9	1.065*	9.6	*estimated from total reported M+F‐ and F+M‐ exposure