The Relationship between Aeroallergen Sensitization and Chronic Cough in School-Aged Children from General Population
Table 1
Demographic and clinical characteristics of the total study population ().
Characteristics
Control ()
Chronic cough ()
value
Demographics
(%)
Mean (SD) or (%)
(%)
Mean (SD) or (%)
Gender, male
1,183 (100)
607 (51.3)
72 (100)
40 (55.6)
0.484
Age, years
8.88 (1.79)
8.43 (1.55)
0.021
Grade
1,186 (100)
72 (100)
0.030
Low (1st-2nd)
618 (52.1)
45 (62.5)
Middle (3rd-4th)
295 (24.9)
20 (27.8)
High (5th-6th)
273 (23,0)
7 (9.7)
Anthropometrics
1,085 (100)
66 (100)
BMI score, mean (SD)
-0.10 (1.06)
-0.14 (1.18)
0.773
Height, cm, mean (SD)
132.6 (12.9)
129.5 (12.2)
0.059
Obesity
57 (5.3)
5 (7.6)
0.417
Prenatal history
Vaginal delivery
1,182 (100)
809 (68.4)
72 (100)
50 (69.4)
0.859
Prematurity
1,092 (100)
109 (10.0)
70 (100)
9 (12.9)
0.440
Low birth weight (<2.5 kg)
1,168 (100)
54 (4.6)
72 (100)
5 (6.9)
0.369
Duration of residence
1,187 (100)
72 (100)
0.084
>6 years
363 (30.6)
29 (40.3)
≤6 years
824 (69.4)
42 (58.3)
Exposure to current smoking
1,183 (100)
72 (100)
0.005
No
1,144 (96.7)
65 (90.3)
Yes
39 (3.3)
7 (9.7)
Exposure to mold
1184 (100)
72 (100)
0.019
No
916 (77.4)
47 (65.3)
Yes
268 (22.6)
25 (34.7)
Family allergic history
Asthma
1,013 (100)
84 (8.3)
56 (100)
6 (10.7)
0.525
Allergic rhinitis
1,098 (100)
434 (39.5)
66 (100)
35 (53.0)
0.030
Atopic dermatitis
1,046 (100)
155 (14.8)
62 (100)
17 (27.4)
0.008
Allergic history
Asthma
1,177 (100)
51 (4.3)
71 (100)
15 (22.7)
<0.001
Allergic rhinitis
1,187 (100)
669 (56.4)
71 (100)
51 (71.8)
0.010
Atopic dermatitis
1,174 (100)
252 (21.5)
72 (100)
22 (30.6)
0.071
BMI: body mass index; SD: standard deviation. Number of completed questionnaires or of appropriate responses to questions in the questionnaire. values are from a test or Student’s -test. Obesity was defined as BMI Prematurity was defined as the gestational weeks, and low birth weight was defined as less than 2.5 kg. Numbers in bold indicate significant differences ().
