Table 3.

Analysis of eFI as a screening test for mortality in the validation dataset at 3 months prior to death, stratified by age and sex using cut points identified in the development dataset with a target sensitivity exceeding 75%.

Group	Development data	Validation data
	eFI Cutpoint	Sensitivity	Specificity	Apparent prevalence	True prevalence	Positive predictive value	Negative predictive value
All individuals: all ages	>0.19	0.76	0.53	0.49	0.07	0.11	0.97
Females: 75–84 years	>0.17	0.79	0.46	0.55	0.04	0.05	0.98
Females: 85–94 years	>0.22	0.75	0.42	0.60	0.12	0.14	0.93
Females: 95+ years	>0.22	0.76	0.28	0.74	0.29	0.30	0.74
Males: 75–84 years	>0.17	0.74	0.49	0.52	0.05	0.07	0.97
Males: 85–94 years	>0.19	0.80	0.42	0.62	0.15	0.19	0.92
Males: 95+ years	>0.19	0.91	0.14	0.88	0.37	0.39	0.73