Equity impact classification criteria
| Equity impact | Classification criteria |
| Positive | Evidence that lower SES groups are relatively more responsive to intervention |
| Neutral | No evidence that intervention has differential impact across low and high SES groups |
| Negative | Evidence that higher SES groups are relatively more responsive to intervention |
| Mixed/unclear | Mixed equity effects and/or unable to assess overall intervention equity impact |
Source: Brown et al (2014) Equity impact of population-level interventions and policies to reduce smoking in adults: a systematic review. Drug and Alcohol Dependence.
SES, socioeconomic status.