Assessing the accuracy of an inter-institutional automated patient-specific health problem list

Table 2 Positive predictive values of most prevalent¹ health problems assessed for each originating data source

Originating Source of assessed health problems	Physician's Response
	Considered valid (n)	Considered invalid (n)	Positive Predictive Value	95% Confidence Interval
Medical Services Claims (n = 59,486)
Hypertension	4767	259	95	94.2 - 95.5
Depression	1867	134	93	92.2 - 94.4
Anxiety	1330	106	93	91.3 - 94.0
Asthma	1064	240	82	79.5 - 83.7
Angina Pectoris	979	218	82	79.6 - 84.0
Osteoporosis	945	27	97	96.2 - 98.3
Diabetes, type 1	807	11	99	97.9 - 99.4
Bronchitis	778	264	75	72.0 - 77.3
Osteoarthritis	752	3	100	--
Dyslipidemia	741	24	97	95.6 - 98.1
Hypercholesterolemia	621	120	84	81.1 - 86.5
Total Top 11 Claims (n = 17,054; 29%)
Single Indication Drugs (n = 10,525)
Hyperlipidemia	1862	404	82	80.6 - 83.8
Hypothyroidism	1378	25	98	97.5 - 98.9
Diabetes Type 2	1232	52	96	94.9 - 97.0
Hypertension	1033	24	98	96.8 - 98.6
Pain	601	333	64	61.3 - 67.4
Insomnia	444	45	91	88.2 - 93.4
Iron deficiency anemia	313	116	73	68.8 - 77.2
Open angle glaucoma	198	133	60	54.5 - 65.1
Depression	185	35	84	79.3 - 88.9
Pernicious anemia	140	39	78	72.2 - 84.3
Hypokalemia	135	73	65	58.4 - 71.4
Total Top 11 SID (n = 9,689; 92%)
Electronic Prescribing (n = 36,939)
Insomnia	1991	15	99	98.9 - 99.6
Dyslipidemia	1969	19	99	98.6 - 99.5
Pain	1769	86	95	94.4 - 96.3
Hypercholesterolemia	1499	25	98	97.7 - 99.0
Hypertension	1159	2	100	--
Gastritis	916	8	99	98.5 - 99.7
Osteoarthritis	814	2	100	--
Gastroesophageal reflux	813	1	100	--
Anxiety	810	4	100	--
Angina pectoris	740	7	99	98.4 - 99.8
Allergic rhinitis	735	3	100	--
Total Top 11 Elec.Presc. (n = 14,476; 39%)

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