Table 1.

Outcome definitions and study populations.

	Disease area
	Diabetes	Cardiovascular disease	Respiratory disease	Mental health
Clinical monitoring
Outcomes measured	HbA1c, blood pressure	Blood pressure	COPD annual review,1 asthma annual review2	Blood pressure
Study population	People with Type 1 DM or Type 2 DM as coded on primary care record any time prior to study entry	People with coronary heart disease, history of stroke or TIA as coded in primary care record any time prior to study entry	1 people aged >40 with a COPD code prior to study entry,2 people with an asthma code in primary care record in the 3 years prior to study entry	People with schizophrenia, bipolar disorder and other psychoses as coded in primary care record any time prior to study entry
Hospital admissions
Outcomes measured	Admission with primary reason type 1 DM, type 2 DM or diabetic ketoacidosis	Admission with primary reason MI, stroke, heart failure or VTE	Admission with primary reason asthma exacerbation in those with asthma1 or COPD exacerbation in those with COPD2	Admission with primary reason depression or anxiety
Study population	People with type 1 DM or type 2 DM code in primary care record any time prior to study entry	General adult population	1 age >40 with COPD code prior to study entry,2 asthma code in primary care record in the 3 years prior to study entry	General adult population

HbA1c: Haemoglobin A1c, COPD: chronic obstructive pulmonary disease, DM: diabetes mellitus, TIA: transient ischaemic attack, MI: myocardial infarction, VTE: venous thromboembolism.