. 2008 Oct 14;10(2):275–281. doi: 10.1093/biostatistics/kxn034

Table 1.

The empirical coverage levels of 95% CIs for the OR obtained based on (i) the MH method with 0.5 imputation (MH-0.5) and (ii) Peto's procedure with event rates ranging from extremely low to moderately low. The results are based on 1000 simulated data sets consisting of 48 2 × 2 tables with the observed sample sizes listed

OR	(a) p_Ci∼U(0,0.01%)		(b) p_Ci∼U(0,0.1%)		(c) p_Ci∼U(0, 10%)
	MH-0.5	Peto	MH-0.5	Peto	MH-0.5	Peto
1	1.000	0.987	0.995	0.958	0.948	0.947
2	0.974	0.968	0.878	0.961	0.944	0.862
5	0.741	0.972	0.233	0.975	0.957	0.000