Table 2 The mean, standard deviation and the Cohen’s d effect size of the subscales of the main five domains of the SNOT-22 questionnaire over the study period
From: Pattern of symptom improvement following endoscopic sinus surgery for chronic rhinosinusitis
SNOT-22 (Five main domains) | SNOT-22 domains’ scores over time | Difference in the score means between preoperative and average of 6 months post ESS | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Preoperative | 1-week post ESS | 1-month post ESS | Average of 6 months post ESS | Significance of the differeNce | Raw mean difference | d | Magnitude | |||||||||||
M | SD | Mdn | M | SD | Mdn | M | SD | Mdn | M | SD | Mdn | t | df | P | ||||
Rhinologic symptoms (0–30) | 18.66 | 3.78 | 19.5 | 12.47 | 5.16 | 12.5 | 11.56 | 8.03 | 13.5 | 9.12 | 8.15 | 9.00 | 7.22 | 67 | < 0.001 | − 9.54 | 1.12 | Large |
Extra nasal rhino logic symptoms (0–15) | 6.99 | 2.00 | 7 | 6.01 | 2.13 | 6 | 3.69 | 1.46 | 3.5 | 4.80 | 3.44 | 3.75 | 4.87 | 67 | < 0.001 | − 2.19 | 0.59 | Moderate |
Ear/facial symptoms (0–25) | 9.09 | 2.77 | 9 | 5.62 | 3.85 | 4.5 | 6.52 | 6.02 | 6.5 | 4.79 | 5.79 | 2 | 6.34 | 67 | < 0.001 | − 4.29 | 0.77 | Moderate |
Psychological dysfunction (0–35) | 6.41 | 6.43 | 4.5 | 3.46 | 4.39 | 2 | 7.75 | 8.66 | 4.5 | 4.24 | 6.52 | 0 | 1.99 | 67 | 0.049 | − 2.18 | 0.24 | Mild |
Sleep dysfunction (0–25) | 7.61 | 4.17 | 7 | 3.96 | 3.70 | 3 | 6.31 | 7.01 | 3.5 | 3.62 | 5.00 | 0 | 5.58 | 67 | < 0.001 | 3.99 | 0.68 | Moderate |
SNOT-22 (0–110) | 40.30 | 12.34 | 39 | 26 | 14.20 | 23 | 30.88 | 24.36 | 29.5 | 22.18 | 20.76 | 17.5 | 6.75 | 67 | < 0.001 | 18.12 | 0.82 | Large |