Differences between CRS and control patients were observed for other perennial and seasonal allergen sources including dog (OR: 3.17, 95% CI: 0.68, 14.72), dust mite (OR: 2.19, 95% CI: 0.88, 5.48), and timothy grass (OR: 3.16, 95% CI: 0.88, 11.34); however, these differences did not reach statistical significance and that may be due to the small sample size (Table 1 ).
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