| Study | Bias | 
| Randomisation process | Deviations from intended interventions | Missing outcome data | Measurement of the outcome | Selection of the reported results | Overall | 
| Authors' judgement | Support for judgement | Authors' judgement | Support for judgement | Authors' judgement | Support for judgement | Authors' judgement | Support for judgement | Authors' judgement | Support for judgement | Authors' judgement | Support for judgement | 
| Jindal 2021 | Low risk of bias | Allocation concealed, sequence generation random and baseline characteristics does not reveal any imbalance between the two groups. | Low risk of bias | Though the personnel were aware of the intervention allocation, but there seems to be no deviations that arouse outside the trial context. Also all patients analysed as randomised. | Low risk of bias | Data reasonably complete for all the included patients | Low risk of bias | Being an objective outcome, it is unlikely that assessment of the outcome would be influenced by knowledge of allocation group | Low risk of bias | Trial analysed as per a priori registered protocol. | Low risk of bias | Low risk across all domains | 
| Saxena 2016 | Low risk of bias | Allocation concealed, sequence generation random and baseline characteristics does not reveal any imbalance between the two groups. | Low risk of bias | Double‐blinded study and neither the participants nor the treating physicians were aware of the allocation. | Low risk of bias | Data reasonably complete for all the included patients till hospital discharge, | Low risk of bias | Being an objective outcome, it is unlikely that assessment of the outcome would be influenced by knowledge of allocation group, | Low risk of bias | Trial analysed as per a priori registered protocol. | Low risk of bias | Low risk across all domains |