InSurE, intubate-surfactant-extubate; LISA, less invasive surfactant
administration; n, number; g, grams; SD, standard deviation; ELBW,
extremely low birth weight; VLBW, very low birth weight; LBW, low birth
weight; SGA, small for gestational age; AGA, appropriate for gestational
age; LGA, large for gestational age; PPROM preterm premature rupture of
membrane; GDM gestational diabetes mellitus; APH antepartum hemorrhage;
PIH pregnancy-induced hypertension; IQR, interquartile range.
*Z test.; ** Chi-Square Test ; ***Fisher’s exact test; #Mann–Whitney
U-test
TABLE -2. Outcome variables of the study group