Table 1.
EPHPP Tool Quality Assessment Summary
| Study | Håberg et al.25 | Chen et al.26 | Cameron et al.27 | Rajappan et al.28 | Videholm et al.29 | Gutvirtz et al.30 | Gutierrez et al.31 |
|---|---|---|---|---|---|---|---|
| Are the individuals selected to participate in the study likely to be representative of the target population? | Somewhat likely | Somewhat likely | Somewhat likely | Very likely | Very likely | Very likely | Somewhat likely |
| What percentage of selected individuals agreed to participate? | <60% agreed | 80%–100% agreed | 80%–100% agreed | 80%–100% agreed | Not applicable | Not applicable | Not applicable |
| Rank this section | Moderate | Strong | Strong | Strong | Strong | Strong | |
| Study design | Population-based cohort study | Prospective birth cohort study | Prospective birth cohort study | Longitudinal cohort study | Population-based cohort study | Population-based retrospective cohort study | Prospective birth cohort study |
| Rank this section | Strong | Strong | Strong | Strong | Strong | Moderate | Moderate |
| Confounders: Were there important differences between groups prior to the intervention? | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Rank this section | Strong | Strong | Strong | Strong | Strong | Strong | Strong |
| Blinding: Was (were) the outcome assessor(s) aware of the intervention or exposure status of participants? | Unable to ascertain | Unable to ascertain | Unable to ascertain | Unable to ascertain | Unable to ascertain | Unable to ascertain | Unable to ascertain |
| Were the study participants blinded to their allocation and/or the research question? | Unable to ascertain | Unable to ascertain | Unable to ascertain | Unable to ascertain | Unable to ascertain | Unable to ascertain | Unable to ascertain |
| Was the data collection tool valid? | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Was the data collection tool reliable? | No | No | Yes | Yes | Yes | Yes | Yes |
| Rank this section | Weak | Weak | Moderate | Moderate | Moderate | Moderate | Moderate |
| Withdrawals and drop outs: Were withdrawals and drop-outs reported in terms of numbers and/or reasons per group? | Not applicable | Yes | Yes | Yes | Not applicable | Not applicable | Not applicable |
| Indicate the percentage of participants completing the study (if the percentage differs by groups, record the lowest) | Not applicable | 80%–100% | 80%–100% | 80%–100% | Not applicable | Not applicable | Not applicable |
| Rank this section | Not applicable | Strong | Strong | Strong | Not applicable | Not applicable | Not applicable |
| Global Ranking: 1 strong=no weak ratings; 2 moderate, all moderate ratings or 1 weak rating; 3 weak, 2 or more weak ratings | Moderate | Moderate | Strong | Strong | Strong | Strong | Strong |
EPHPP, Effective Public Health Practice Project.