| Variable | Overall (N = 80) | Group | Allergic rhinitis group (N = 57) | Nonallergic rhinitis (N = 23) | value |
| Onset season | | | | 0.029 | Spring | 7 (8.75) | 2 (3.51) | 5 (21.74) | | Summer | 25 (31.25) | 18 (31.58) | 7 (30.43) | | Autumn | 35 (43.75) | 29 (50.88) | 6 (26.09) | | Winter | 13 (16.25) | 8 (14.04) | 5 (21.74) | | Gender | | | | 0.623 | Girl | 28 (35.00) | 19 (33.33) | 9 (39.13) | | Boy | 52 (65.00) | 38 (66.67) | 14 (60.87) | | Age (years) | 9.00 (6.00, 12.00) | 9.00 (6.00, 11.00) | 10.00 (7.00, 12.00) | 0.348 | Number of allergen | | | | <0.001 | 0 | 21 (26.25) | 0 (0.00) | 21 (91.30) | | 1 | 29 (36.25) | 27 (47.37) | 2 (8.70) | | 2 | 13 (16.25) | 13 (22.81) | 0 (0.00) | | 3 | 12 (15.00) | 12 (21.05) | 0 (0.00) | | 4 | 4 (5.00) | 4 (7.02) | 0 (0.00) | | 5 | 1 (1.25) | 1 (1.75) | 0 (0.00) | | Total IgE | 55.80 (22.42, 189.71) | 79.61 (35.93, 292.13) | 33.12 (14.80, 50.50) | <0.001 | Red blood cell | 4.65 (0.41) | 4.70 (0.43) | 4.53 (0.36) | 0.094 | Hemoglobin | 13.00 (12.30, 14.00) | 12.90 (12.30, 14.10) | 13.00 (12.50, 13.60) | 0.678 | Leukocyte | 6.96 (1.64) | 6.84 (1.65) | 7.27 (1.62) | 0.291 | Blood platelet | 268.50 (236.00, 301.50) | 265.00 (239.00, 303.00) | 270.00 (232.00, 299.00) | 0.882 | Nasal obstruction severity | 0.00 (0.00, 3.00) | 1.00 (0.00, 5.00) | 0.00 (0.00, 0.00) | <0.001 | Rhinorrhea severity | 1.00 (0.00, 4.00) | 2.00 (1.00, 5.00) | 0.00 (0.00, 0.00) | <0.001 | Sneezing severity | 1.00 (0.00, 4.00) | 2.00 (0.00, 5.00) | 0.00 (0.00, 1.00) | <0.001 | Nasal itching severity | 3.00 (2.00, 5.00) | 3.00 (2.00, 5.00) | 2.00 (0.00, 3.00) | <0.001 | Frequency of epistaxis | | | | 0.774 | Once per month | 14 (17.50) | 9 (15.79) | 5 (21.74) | | Once per week | 37 (46.25) | 26 (45.61) | 11 (47.83) | | Several per week | 21 (26.25) | 17 (29.82) | 4 (17.39) | | Once per day | 6 (7.50) | 4 (7.02) | 2 (8.70) | | Several each day | 2 (2.50) | 1 (1.75) | 1 (4.35) | | Duration of epistaxis | | | | 0.664 | <1 minute | 51 (63.75) | 36 (63.16) | 15 (65.22) | | 1–5 minutes | 27 (33.75) | 19 (33.33) | 8 (34.78) | | 6–15 minutes | 2 (2.50) | 2 (3.51) | 0 (0.00) | | Need for medical attention | | | | 1.000 | No | 76 (95.00) | 54 (94.74) | 22 (95.65) | | Yes | 4 (5.00) | 3 (5.26) | 1 (4.35) | | Anemia | | | | 0.946 | No | 71 (88.75) | 50 (87.72) | 21 (91.30) | | Yes | 9 (11.25) | 7 (12.28) | 2 (8.70) | | ESS score | 1.40 (1.00, 2.50) | 1.40 (1.00, 2.50) | 1.00 (1.00, 2.50) | 0.528 | Family history | | | | 0.738 | No | 57 (71.25) | 40 (70.18) | 17 (73.91) | | Yes | 23 (28.75) | 17 (29.82) | 6 (26.09) | |
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