Paraffin oil vs. Coconut oil
Only one study (42) compared two oil-based GL techniques, reporting alower mortality rate with paraffin compared to coconut oil but without statistically significant differences (RR= 0.87, 95% CI= 0.58 to 1.30). Likewise, there was no significant difference between the paraffin oil and coconut oil groups in terms of length of hospital stay and the need for mechanical ventilation.Diarrhea and nausea (1 with paraffin and 4 with coconut oil) were observed in a small number of participants, again, without significant differences between both interventions.No severe AEs were reported .

Quality of the evidence

The evidence quality was evaluated by the GRADE system . (Figure 15 : GRADE Evidence profile).