| Srinivasakumar 2015 | 
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 |