Summary of CPCSSN Case Definitions for 8 Index Conditions
| Case Definition | ||
|---|---|---|
| Condition | Inclusions | Exclusions |
| Diabetes | Diabetes mellitus type 1 and type 2, controlled or uncontrolled | Gestational diabetes, chemically induced (secondary) diabetes, neonatal diabetes, polycystic ovarian syndrome, hyperglycemia, prediabetes, or similar states or conditions (such as impaired fasting glucose or glucose intolerance) |
| Hypertension | Essential hypertension, hypertensive heart disease, hypertensive chronic kidney disease, hypertensive heart and kidney disease, secondary hypertensiona | Myocardial infarction, congestive heart failure, angina, portal hypertension, white-coat hypertension, gestational hypertension, or pregnancy-induced hypertension (unless there was a preexisting diagnosis of hypertension), borderline hypertension, or similar nonspecific comment |
| COPD | Obstructive chronic bronchitis, emphysema, chronic airway obstruction (ever)b | All types of asthma, including chronic obstructive asthma |
| Depression | Episodic mood disorders, depressive disorder not elsewhere classified, bipolar, manic affective disorder, manic episodes, mild depression (not simply clinical depression)c | Anxiety disorders, alcohol or drug-induced mental disorders, schizophrenic disorders, delusional disorders, other nonorganic psychoses, pervasive developmental disorders, or other intellectual disabilities |
| Osteoarthritis | Osteoarthritis and allied disorders, spondylosis and allied disorders such as kissing spine, ankylosing vertebral hyperostosis | Intervertebral disc disorders, spinal stenosis, ankylosing spondylitis, and other inflammatory spondylopathies |
| Epilepsy | Epilepsy, recurrent seizures or general convulsions, petit mal (absence) seizures, grand mal (tonic-clonic) seizures, myoclonic epilepsy, childhood-onset epilepsy, childhood-related epilepsy | Provoked seizure, alcohol withdrawal seizure, hypoglycemic seizure, or possible or suspected variants of the inclusionsd |
| Parkinsonism | Parkinson disease, paralysis agitans, parkinsonism | Tremor, Wolf-Parkinson-White syndrome, and “suspected” or “possible” variants of the inclusions |
| Dementia | Alzheimer disease, frontotemporal dementia, Pick disease, senile degeneration of the brain, corticobasal degeneration, cerebral degeneration, dementia with Lewy bodies, mild cognitive impairment, senile dementia, presenile dementia, vascular dementia, senility without mention of psychosis | |
COPD = chronic obstructive pulmonary disease; CPCSSN = Canadian Primary Care Sentinel Surveillance Network.
↵a Requires an explicit diagnosis of hypertension (eg, elevated blood pressure values alone are insufficient).
↵b Only persons aged 35 years and older are eligible for inclusion. Classification of COPD requires more than a single x-ray or spirometry finding and must include either a specific or similar diagnosis of COPD.
↵c This definition identifies lifetime prevalence.
↵d Individuals with a diagnosis of petit mal, grand mal, or convulsions and not receiving antiepileptic drugs are excluded, along with individuals on antiepileptic drugs only and no diagnosis in the chart.