Table 2.

Results at various prediction threshold cut-offs that can be used to select the threshold used by any future epidemiology study when selecting an end of observations due to death

Finding people who are dead …
	Prediction threshold	Sensitivity of death	Specificity of death	Positive predictive value of death	Proportion of target population
If you choose by prediction threshold to be greater than …
	0.9	26.170	99.901	86.898	0.007
	0.5	61.895	99.474	74.754	0.020
	0.1	90.282	98.149	55.095	0.040
If you choose by sensitivity …
	0.666	50	99.676	79.549	0.015
	0.1046	90	98.184	55.489	0.040
	0.0019	99	69.321	7.510	0.324
If you choose by specificity…
	0.253	78.608	99	66.515	0.029
	0.905	25.599	99.9	87.174	0.007
	0.990	7.207	99.99	95.054	0.002