Table 4.

Sensitivity Analysis of estimated a nnual unintended pregnancy rates

		Expected annual number of unintended pregnancies/ 100 women 15–49			Expected changes in unintended pregnancies /100 women 15–49
French failure rates		2000	2005	2010	2000 to 2005	2005 to 2010
	60% first year pregnancy rate among non-users	3.16	3.49	3.26	0.33	−0.23
	85% first year pregnancy rate among non-users	3.76	4.29	3.87	0.53	−0.42
	45% first year pregnancy rate among non-users	2.80	3.01	2.89	0.20	−0.12
US failure rates
	60% first year pregnancy rate among non-users	7.03	7.18	7.10	0.15	−0.08
	85% first year pregnancy rate among non-users	7.63	7.99	7.71	0.36	−0.28
	45% first year pregnancy rate among non-users	6.67	6.70	6.74	0.03	0.04