TABLE 4.
Univariate screening for predictive variables on the RSDI
| Total Cohort (n=302) | Poor Baseline QoL (n=240) | |||||
|---|---|---|---|---|---|---|
| Variables: | Improved | Did not improve | p-value | Improved | Did not improve | p-value |
| Age (mean ± SD) | 48.3 ± 13.6 | 49.2 ± 14.3 | 0.561 | 47.9 ± 13.6 | 48.2 ± 12.7 | 0.890 |
| Education ( mean yrs.) | 15.2 ± 2.6 | 14.6 ± 2.9 | 0.113* | 15.2 ± 2.5 | 14.5 ± 3.0 | 0.094* |
| Gender (%) | ||||||
| Male | 60.6 | 39.4 | 68.5 | 31.5 | ||
| Female | 68.0 | 32.0 | 0.181* | 75.0 | 25.0 | 0.268 |
| Race | ||||||
| White | 65.2 | 34.8 | 72.0 | 28.0 | ||
| Non-white | 57.1 | 42.9 | 0.352 | 69.0 | 31.0 | 0.731 |
| Annual household income | ||||||
| < $50,000/year | 62.7 | 37.3 | 67.1 | 32.9 | ||
| ≥ $50,000/year | 65.3 | 34.7 | 0.658 | 74.2 | 25.8 | 0.241* |
| Nasal polyposis | ||||||
| Present | 64.0 | 36.0 | 72.7 | 27.3 | ||
| Absent | 64.4 | 35.6 | 0.942 | 70.9 | 29.1 | 0.760 |
| Asthma | ||||||
| Present | 59.5 | 40.5 | 66.7 | 33.3 | ||
| Absent | 67.8 | 32.2 | 0.136* | 75.4 | 24.6 | 0.139* |
| ASA Intolerance | ||||||
| Present | 51.3 | 48.7 | 62.1 | 37.9 | ||
| Absent | 66.2 | 33.8 | 0.070* | 73.0 | 27.0 | 0.221 |
| Allergies by testing | ||||||
| Present | 61.3 | 38.7 | 73.5 | 26.5 | ||
| Absent | 65.5 | 34.5 | 0.476 | 70.9 | 29.1 | 0.687 |
| Depression | ||||||
| Present | 70.8 | 29.2 | 78.6 | 21.4 | ||
| Absent | 63.0 | 37.0 | 0.299 | 70.2 | 29.8 | 0.274 |
| History of sinus surgery | ||||||
| Primary | 74.4 | 25.6 | 83.5 | 16.5 | ||
| Revision | 57.8 | 42.2 | 0.004* | 64.4 | 35.6 | 0.001* |
| Current smoker | ||||||
| Smokers | 75.0 | 25.0 | 71.4 | 28.6 | ||
| Non-smokers | 63.6 | 36.4 | 0.356 | 71.7 | 28.3 | 0.984 |
| Alcohol consumption | ||||||
| Not heavy | 64.0 | 36.0 | 72.2 | 27.8 | ||
| Heavy | 68.4 | 31.6 | 0.694 | 61.5 | 38.5 | 0.405 |
| Preoperative diagnostic testing: (mean ± SD) | ||||||
| Lund-Kennedy endoscopy | 6.8 ± 4.8 | 7.2 ± 4.8 | 0.547 | 6.8 ± 4.7 | 7.2 ± 4.4 | 0.462 |
| Lund-MacKay CT | 13.2 ± 6.3 | 12.7 ± 6.7 | 0.558 | 13.4 ± 6.2 | 12.5 ± 6.3 | 0.325 |
RSDI = Rhinosinusitis Disability Index. QOL = quality of life. SD = standard deviation. CT = computed tomography.
*
denotes statistically significant candidate variables for final outcome models at the p ≤ 0.25 level for both total cohort and candidates with poor baseline QOL.