Table 4.

Incidence rates of IBC, comparison to published studies

	Cases per 100,000 p-y	Years Observed
Dayton Study
T, T + AI	165	10
WHI RCT 29,30
Placebo	330	10.7
E alone	260	10.7
E + P	380	5.2
MWS 31
Never users	312	14
E alone, E + P	501	14
Adelaide 14
T + E, T + E + P	238	5.9
T + E + P	293	5.9