Table 2: Results of validation analysis using the outcome of original manual review of the electronic medical record charts as the reference standard
DiseaseNo. of casesSensitivity (95% CI), %Specificity (95% CI), %Positive predictive value (95% CI), %Negative predictive value (95% CI), %
Chart +, CPCSSN +Chart -, CPCSSN +Chart -, CPCSSN -Chart +, CPCSSN -
Hypertension915668854095.8
(94.5-97.1)
93.1
(91.4-94.7)
93.3
(91.7-94.8)
95.7
(94.4-97.0)
Diabetes311331553997.2
(95.4-99.0)
97.9
(97.2-98.6)
90.4
(87.3-93.5)
99.4
(99.0-99.8)
Depression2994714738777.5
(73.3-81.6)
96.9
(96.0-97.9)
86.4
(82.8-90.0)
94.4
(93.3-95.6)
Chronic obstructive pulmonary disease1252517302682.8
(76.8-88.8)
98.6
(98.0-99.1)
83.3
(77.4-89.3)
98.5
(98.0-99.1)
Dementia821517971287.2
(80.5-94.0)
99.2
(98.8-99.6)
84.5
(77.3-91.7)
99.3
(99.0-99.7)
Osteoarthritis50788121110083.5
(80.6-86.5)
93.2
(91.9-94.6)
85.2
(82.4-88.1)
92.4
(90.9-93.8)
Epilepsy130191751695.6
(92.1-99.0)
98.9
(98.4-99.4)
87.2
(81.9-92.6)
99.7
(99.4-99.9)
Parkinsonism661118121779.5
(70.8-88.2)
99.4
(99.0-99.8)
85.7
(77.9-93.5)
99.1
(98.6-99.5)

Note: CI = confidence interval, CPCSSN = Canadian Primary Care Sentinel Surveillance Network.