| Methods |
Randomly allocated by computer‐generated random numbers kept in sealed envelopes to either vibroacoustic stimulated modified biophysical profile (VAS/mFBP) or mock stimulation (mFBP). |
| Participants |
214 women with high risk singleton pregnancies detected amongst women attending antenatal clinic. Country: India. |
| Interventions |
Vibroacoustic stimulation was done with EMCO vibroacoustic stimulator (EMCO Health Care Pvt Ltd, Sion, Mumbai, India) with 75 db sound intensity at 1.0 meter and frequency of 75 Hz. |
| Outcomes |
Mean testing time for modified biophysical profile, caesarean section for fetal distress, 5 minute Apgar score < 7, admission to NICU for more than 24 hours. |
| Notes |
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
Low risk |
Randomised by computer‐generated random numbers. |
| Allocation concealment (selection bias) |
Low risk |
Random numbers kept in sealed envelopes. |
| Blinding (performance bias and detection bias)
All outcomes |
Unclear risk |
Unclear. |
| Incomplete outcome data (attrition bias)
All outcomes |
Low risk |
Follow‐up: 100%. |
| Selective reporting (reporting bias) |
Low risk |
All outcomes in the methods section have been reported on in the results section. |
| Other bias |
Low risk |
No evidence of any other form of bias. |
