Table 3 Risk of bias in non-randomized reporting on interventions to increase the uptake of vaccines recommended during pregnancy
Study author and year | Confounding | Selection of participants | Classification of interventions | Deviations from intended intervention | Missing Data | Measurement of Outcomes | Selection of Reported Result | Overall |
|---|---|---|---|---|---|---|---|---|
Patient-level interventions | ||||||||
Chakrabarti et al.27 | Moderate risk | Low risk | Low risk | Low risk | No information | Low risk | Low risk | Moderate risk |
Momani et al.13 | Low risk | Low risk | No information | No information | Low risk | No risk | Critical risk | |
Shah et al.38 | Serious risk | Low risk | Low risk | No information | No information | Low risk | No risk | Serious risk |
Provider or systems-level interventions | ||||||||
Balakrishnan et al.35 | Serious risk | Low risk | Low risk | No information | No information | No information | Low risk | Serious risk |
Bonfrer et al.36 | Moderate risk | Low risk | Low risk | Low risk | No information | Low risk | Low risk | Moderate risk |
Klatt & Hopp31 | Serious risk | Low risk | Low risk | Low risk | No information | Low risk | Low risk | Serious risk |
Li et al.33 | Moderate risk | Low risk | Low risk | Low risk | Low risk | Serious risk | Low risk | Serious risk |
Mouzoon et al.32 | Serious risk | Low risk | Low risk | No information | No information | No information | Low risk | Serious risk |
Spina et al.34 | Serious risk | Low risk | Low risk | Low risk | Moderate risk | Low risk | Low risk | Serious risk |
Woolley et al.39 | Moderate risk | Low risk | Low risk | No information | No information | Low risk | Low risk | Moderate risk |
Patient and provider or systems-level interventions | ||||||||
Brewer et al.44 | Moderate risk | Low risk | Low risk | Low risk | No information | Low risk | Low risk | Moderate risk |
Dehlinger et al.42 | Serious risk | Low risk | Low risk | Low risk | No information | Low risk | Low risk | Serious risk |
Mazzoni et al.43 | Moderate risk | Low risk | Low risk | No information | No information | Low risk | Low risk | Moderate risk |
Ohly et al. 2018 | Serious risk | Moderate risk | Low risk | Low risk | No information | Low risk | Low risk | Serious risk |
