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Table1 Characteristics of the patient episodes for ARD, HDM-ARD and NHDM-ARD

From: Assessing the impact of air pollutants on clinical visits for childhood allergic respiratory disease induced by house dust mite in Shanghai, China

variables

ARD

HDM-ARD

NHDM-ARD

p-value

Total clinical visits

16,249

8179 (50.3%)

8070 (49.7%)

< 0.001

Outpatient visits

11,437 (70.4%)

6691(81.8%)

4746 (58.8%)

< 0.001

Inpatient visits

4812 (29.6%)

1488 (18.2%)

3324 (41.2%)

< 0.001

Age (years)

 Mean (SD)

4.8 (2.8)

5.6 (2.8)

3.9 (2.5)

< 0.001

 ≤ 2

2597 (16.0%)

436 (5.3%)

2161 (26.8%)

< 0.001

 3–6

10,178 (62.6%)

5289 (64.7%)

4889 (60.6%)

 7–17

3474 (21.4%)

2454 (30.0%)

1020 (12.6%)

Gender

 Male

10,193 (62.7%)

5238 (64.0%)

4955 (61.4%)

< 0.001

 Female

6056 (37.3%)

2941 (36.0%)

3115 (38.6%)

TIgE (IU/ML)

 Median, interquartile

123.0 (48.4 ~ 278)

235.0 (118 ~ 574)

77.1 (26.3 ~ 146)

< 0.001

  1. ARD allergic respiratory disease, HDM-ARD allergic respiratory disease induced by house dust mite, NHDM-ARD allergic respiratory disease induced by non-house dust mite, TIgE serum total IgE. p-value was calculated by Pearson Chi-square test or Mann–Whitney U test