Pre-op mean score(SD) Post-op mean score(SD) Mean difference(SD) Standard error
(SE) &
‘T’ score ‘p’ value Inference
40.25(6.18) 13.75(2.87) 26.50
(5.45) SE=2.73
T=9.72 0.002309 Highly Significant at p<0.05
Thus on applying the paired ‘T’ test in comparison of pre and post SNOT-22 scores in all cases ‘p’ value was very less than 0.05 which is highly significant statistically. It means post operative improvement after septoplasty, FESS and Septoplasty+FESS was drastic.