Table 2 Risk of Bias Assessment of included studies based on the ACROBAT-NRSI instrument
Study | Domains of bias | ||||||
|---|---|---|---|---|---|---|---|
Bias due to confounding | Bias in selection of participants | Bias in measurement of interventions | Bias due to departures from intended interventions | Bias due to missing data | Bias in measurement of outcomes | Bias in selection of reported results | |
Borzou | Moderate risk | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk |
Khaledi | Low risk | Low risk | Low risk | Moderate risk | Low risk | Low risk | Moderate risk |
Saadatjoo | Serious risk | Low risk | Serious risk | Moderate risk | Serious risk | Moderate risk | Serious risk |
Timareh | Serious risk | Moderate risk | Low risk | Moderate risk | Moderate risk | Low risk | Moderate risk |
Sadabadi | Moderate risk | Low risk | Moderate risk | Serious risk | Moderate risk | Moderate risk | Low risk |
Darvishpoor Kakhki | Serious risk | Low risk | Low risk | Moderate risk | Low risk | Moderate risk | Low risk |
Hadi | Low risk | Low risk | Moderate risk | Low risk | Low risk | Low risk | Low risk |
Darvishpoor Kakhki | Moderate risk | Low risk | Low risk | Low risk | Low risk | Moderate risk | Low risk |
Mohammadshahi | Low risk | Moderate risk | Low risk | Low risk | Low risk | Moderate risk | Low risk |
Kashfi | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk | Moderate risk |
Borhaninejad | Moderate risk | Low risk | Moderate risk | Moderate risk | Low risk | Low risk | Low risk |
Hajian-Tailaki | Low risk | Low risk | Low risk | Moderate risk | Moderate risk | Low risk | Low risk |
Mazloomy Mahmood Abad | Low risk | Moderate risk | Low risk | Low risk | Low risk | Low risk | Low risk |
Gholami | Moderate risk | Low risk | Low risk | Moderate risk | Low risk | Low risk | Low risk |