Table 1 Demographic features of traditional Chinese medicine (TCM) users for pediatric atopic dermatitis in Taiwan in 2007

Sex

 Female (%)

6973 (51.1)

13,292 (46.7)

1

 Male (%)

6673 (48.9)

15,165 (53.3)

0.83

0.79–0.86

<0.001

Age (mean (SD))

7.81 (3.4)

5.00 (3.7)

<0.001

 Infants, <1 (%)

348 (2.6)

4986 (17.5)

1

 Toddlers, 1–2 (%)

1230 (9.0)

6396 (22.5)

2.78

2.45–3.16

<0.001

 Pre-schools, 3–5 (%)

2657 (19.5)

6036 (21.2)

5.57

4.94–6.29

<0.001

 School ages, 6–12 (%)

9411 (69.0)

11,039 (38.8)

10.0

8.88–11.15

<0.001

Combined allergic diseases

 Asthma (%)

1381 (10.1)

2057 (7.2)

0.87

0.77–0.99

0.041

 Allergic rhinitis (%)

4565 (33.5)

3877 (13.6)

2.44

2.10–2.85

<0.001

 Bronchitis (%)

4604 (33.7)

12,220 (42.9)

0.53

0.45–0.62

<0.001

Number of combined allergic diseases

 0

6293 (46.1)

14,604 (51.3)

1

 1

4774 (35.0)

10,418 (36.6)

1.33

1.14–1.55

<0.001

  ≥ 2

2579 (18.9)

3435 (12.0)

1.34

1.02–1.90

0.039

Geo-location

 Northern area

6144 (45.0)

14,191 (49.9)

1

 Middle area

3624 (26.6)

5413 (19.0)

1.77

1.67–1.89

<0.001

 South area

3648 (26.7)

8281 (29.1)

1.12

1.06–1.19

<0.001

 East area

230 (1.7)

572 (2.0)

1.03

0.87–1.22

0.718

Urbanization level

 1 (most urbanization)

4218 (30.9)

8586 (30.2)

1

 2 (more urbanization)

4418 (32.4)

8411 (29.6)

1.05

0.99–1.11

0.109

 3 (middle urbanization)

2306 (16.9)

4855 (17.1)

0.90

0.83–0.96

<0.001

 4 (least urbanization)

2704 (19.8)

6605 (23.2)

0.75

0.70–0.81

<0.001