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Table 2 Chao’s estimator for registration system with M occasions and true N=200

From: Correspondence: Some general points regarding Ledberg and Wennberg, BMC Medical Research Methodology 2014 April 27;14:58

    M=5 M=10
Setting p 1 p 2 \(\bar s\) \(\bar f_{0}\) \(\bar N\) SD(\(\hat f_{0}\)) \(\bar s\) \(\bar f_{0}\) \(\bar N\) SD(\(\hat f_{0}\))
1 0.1 0.1 82 120 202 52 130 70 200 20
2 0.3 0.05 106 40 156 13 137 29 166 10
\