Table 1.
Demographic and Clinical Characteristics of the Clinical NAR (N = 169) and Clinical AR (N = 593)
| Characteristic | Self-Reported Allergic Rhinitis | Total (N=762) | P | ||
|---|---|---|---|---|---|
| Clinical NAR | Clinical AR | ||||
| n (%)a | n (%)b | ||||
| Region | Eastern | 68 (40.2) | 314 (53.0) | 382 (50.13) | 0.004 |
| Western | 101 (59.8) | 279 (47.0) | 380 (49.87) | ||
| Age (years) | 0–6 | 89 (52.7) | 244 (41.1) | 333 (43.70) | 0.008 |
| 7–14 | 80 (47.3) | 349 (58.9) | 429 (56.30) | ||
| Gender | Female | 58 (34.3) | 177 (29.8) | 235 (30.84) | 0.267 |
| Male | 111 (65.7) | 416 (70.2) | 527 (69.16) | ||
| Ethnic | Other | 10 (5.9) | 37 (6.2) | 47 (6.17) | 0.878 |
| Han | 159 (94.1) | 556 (93.8) | 715 (65.88) | ||
| Self-reported asthma | No | 88 (52.1) | 279 (47.0) | 367 (48.16) | 0.249 |
| Yes | 81 (47.9) | 314 (53.0) | 395 (51.84) | ||
| Allergic conjunctivitis | No | 97 (57.4) | 253 (42.7) | 260 (34.12) | 0.001 |
| Yes | 72 (42.6) | 340 (57.3) | 502 (65.88) | ||
| Skin allergy | No | 90 (53.3) | 291 (49.1) | 381 (50.00) | 0.337 |
| Yes | 79 (46.7) | 302 (50.9) | 381 (50.00) | ||
| Birth mode | Eutocia | 93 (55.0) | 351 (59.2) | 444 (58.27) | 0.333 |
| Cesarean | 76 (45.0) | 242 (40.8) | 318 (41.73) | ||
| Passive smoking | No | 79 (46.7) | 293 (49.4) | 372 (48.82) | 0.541 |
| Yes | 90 (53.3) | 300 (50.6) | 390 (51.18) | ||
| Family history | No | 56 (33.1) | 204 (34.4) | 260 (34.12) | 0.760 |
| Yes | 113 (66.9) | 389 (65.6) | 502 (65.88) | ||
| Location of the building | Urban | 128 (68.1%) | 404 (70.4%) | 490 (69.82) | 0.551 |
| Rural | 60 (31.9%) | 170 (29.6%) | 272 (30.18) | ||
| Residential floor | ≤9 floors | 118 (69.8) | 372 (62.7) | 490 (64.30) | 0.090 |
| >9 floors | 51 (30.2) | 221 (37.3) | 272 (35.70) | ||
| Air conditioner | No | 63 (37.3) | 176 (29.7) | 239 (31.36) | 0.060 |
| Yes | 106 (62.7) | 417 (70.3) | 523 (68.64) | ||
| Using mattress | No | 17 (10.1) | 46 (7.8) | 63 (8.27) | 0.338 |
| Yes | 152 (89.9) | 547 (92.2) | 699 (91.73) | ||
| Q1 | No | 105 (62.1) | 340 (57.3) | 445 (58.40) | 0.536 |
| Yes | 44 (26.0) | 173 (29.2) | 217 (28.48) | ||
| Never contact | 20 (11.8) | 80 (13.5) | 100 (13.12) | ||
| Q2 | No | 129 (76.3) | 409 (69.0) | 538 (70.60) | 0.141 |
| Yes | 20 (11.8) | 104 (17.5) | 124 (16.27) | ||
| Never contact | 20 (11.8) | 80 (13.5) | 100 (13.12) | ||
| Q3 | No | 46 (27.2) | 179 (30.2) | 225 (29.53) | 0.126 |
| Yes | 8 (4.7) | 52 (8.8) | 60 (7.87) | ||
| Never contact | 115 (68.0) | 362 (61.0) | 477 (62.60) | ||
| Q4 | No | 48 (28.4) | 195 (32.9) | 243 (31.89) | 0.185 |
| Yes | 6 (3.6) | 36 (6.1) | 42 (5.51) | ||
| Never contact | 115 (68.0) | 362 (61.0) | 477 (62.60) | ||
Notes: aSelf-reported AR subjects showing negative IgE. bSelf-reported AR subjects with positive IgE. Q1: Symptoms of itching, stuffy nose or snorting after contact with grass, trees or flowers. Q2: Symptoms of dyspnea, wheezing, chest tightness, shortness of breath or cough after contact with grass, trees or flowers. Q3: Symptoms of itching, stuffy nose or snorting after contact with dogs or cats. Q4: Symptoms of dyspnea, wheezing, chest tightness, shortness of breath or cough after contact with dogs or cats. P value significant at <0.05.