Group-1 (n = 34) Silverman score < 7	Group-2 (n = 30) Silverman score ≥ 7	p
Respiratory rate at admissiona	64 (60–78)	68 (62–88)	0.003
Downe’s score at admissiona	4 (2–7)	7 (7–10)	0.001
Downe’s score at 24th houra	1 (0–3)	3 (1–10)	0.001
Silverman score at 24th houra	1 (0–3)	3 (1–9)	0.001
Oxygen free saturation at admissiona	93 (84–98)	90 (81–94)	0.001
Duration of hospitalizationa	3 (1–8)	6 (2–15)	0.001
Respiratory support (n)
Hood	25	3	0.001
nCPAP	9	17
nSIMV	0	7
SIMV	0	3
Duration of oxygen treatmenta	2 (1–5)	4 (1–14)	0.001