Table 1 Crude and adjusted* prevalence rates (%) of three allergic diseases

Total

22,009

3∙3 (3∙1-3∙6)

3∙3 (3∙1-3∙6)

9∙8 (9∙4-10∙2)

9∙8 (9∙4-10∙2)

5∙5 (5∙2-5∙8)

5∙5 (5∙2-5∙8)

Harbin(4)

2,900

1∙4 (1∙0-1∙9)

1∙7 (1∙0-2∙4)

4∙9 (4∙1-5∙7)

4∙9 (3∙9-5∙8)

5∙3 (4∙5-6∙1)

4∙7 (3∙9-5∙5)

Shanghai(10)

4,395

7∙2 (6∙4-8∙0)

7∙0 (6∙0-7∙9)

12∙9 (11∙9-13∙9)

13∙1 (11∙7-14∙5)

6∙4 (5∙7-7∙1)

6∙5 (5∙4-7∙5)

Guangzhou(4)

3,094

3∙0 (2∙4-3∙6)

3∙0 (2∙4-3∙6)

16∙7 (15∙4-18∙0)

16∙8 (15∙3-18∙2)

5∙3 (4∙5-6∙1)

5∙4 (4∙6-6∙2)

Xi'an(3)

1,653

1∙1 (0∙6-1∙6)

1∙1 (0∙6-1∙7)

3∙9 (3∙0-4∙8)

3∙9 (2∙9-4∙9)

4∙4 (3∙4-5∙4)

4∙4 (3∙4-5∙4)

Wuhan(4)

2,061

3∙6 (2∙8-4∙4)

3∙5 (2∙7-4∙3)

8∙5 (7∙3-9∙7)

8∙3 (7∙1-9∙6)

6∙0 (5∙0-7∙0)

6∙1 (5∙0-7∙2)

Chengdu(5)

2,848

4∙5 (3∙8-5∙3)

4∙6 (3∙8-5∙4)

9∙9 (8∙8-11∙0)

10∙1 (8∙9-11∙2)

4∙2 (3∙5-4∙9)

4∙3 (3∙5-5∙1)

Hohhot(5)

2,025

1∙0 (0∙6-1∙5)

0∙9 (0∙5-1∙4)

5∙4 (4∙4-6∙4)

4∙5 (3∙6-5∙4)

6∙2 (5∙2-7∙2)

6∙4 (4∙9-7∙9)

Urumqi(4)

2,033

1∙5 (1∙0-2∙1)

1∙6 (1∙0-2∙1)

10∙3 (9∙0-11∙6)

10∙1 (8∙6-11∙5)

5∙9 (4∙9-6∙9)

5∙9 (4∙8-6∙9)

**P

<0∙001

<0∙001

<0∙001

<0∙001

<0∙001

<0∙001