Table 1 Screening strategies applied to detect diabetes

Mass

Screening of an entire apparently healthy population regardless of risk factors

Opportunistic

Screening of individuals, who may or may not be considered at-risk for diabetes, when presenting for any reason to the health system or other opportunistic interaction (e.g. HIV testing drive)

Targeted

Seeking out and screening individuals from a population who are considered at-risk of developing diabetes (e.g. obese, older age)