Table 1.

Distribution of the observed, expected, and detection rates for MCI diagnosis in primary care

					Percentile
	Mean	SD	5th	25th	50th/Median	75th	95th
Clinician (N=226,756)
Observed rate	0.01	0.02	0.00	0.00	0.01	0.02	0.05
Expected rate	0.19	0.05	0.14	0.16	0.18	0.21	0.30
Detection rate	0.08	0.10	0.00	0.00	0.06	0.12	0.25
Practice (N=54,597)
Observed rate	0.01	0.02	0.00	0.00	0.01	0.02	0.05
Expected rate	0.20	0.06	0.14	0.16	0.19	0.23	0.32
Detection rate	0.08	0.10	0.00	0.00	0.05	0.10	0.23

Abbreviations: MCI, mild cognitive impairment. Notes: The detection rate is calculated as the ratio of observed over expected rates.