Table 1.

Health state definitions for HIV, diabetes, and hypertension

	HIV	Diabetes	Hypertension
Free of the condition	Immunoassay negative	No previous diagnosis of diabetes and HbA1c ≤6·5%	No previous diagnosis of hypertension and blood pressure <140/<90 mm Hg
Diagnosed, engaged in care, and optimally treated	Known diagnosis of HIV, on treatment, and HIV viral load <40 copies per mL	Known diagnosis of diabetes, on treatment, and HbA1c ≤6·5%	Known diagnosis of hypertension, on treatment, and blood pressure ≤140/≤90 mm Hg
Diagnosed, engaged in care, and suboptimally treated	Known diagnosis of HIV, on treatment, and HIV viral load >40 copies per mL	Known diagnosis of diabetes, on treatment, and HbA1c >6·5%	Known diagnosis of hypertension, on treatment, and blood pressure ≥140/≥90 mm Hg
Diagnosed but not engaged in care	Known diagnosis of HIV, not on treatment, and HIV viral load >40 copies per mL	Known diagnosis of diabetes, not on treatment, and HbA1c>6·5%	Known diagnosis of hypertension, not on treatment, and blood pressure ≥140/≥90 mm Hg
Undiagnosed but had a positive screening test in the Vukuzazi study	No previous diagnosis of HIV, immunoassay positive, and HIV viral load >40 copies per mL	No previous diagnosis of diabetes and HbA1c ≥6·5%	No previous diagnosis of hypertension and blood pressure ≥140/≥90 mm Hg

HBA_1c=glycated haemoglobin.