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. 2013 Oct;2(4):160–166. doi: 10.3978/j.issn.2224-4336.2013.10.05

Table 3. Asthma in children of different age groups [n (%)].

Age (years) Urban area
Suburban area
Rural area
n Prevalence n Prevalence n Prevalence
0- 296 0 (0) 146 1 (0.68) 56 0 (0)
1- 354 6 (1.69) 255 3 (1.18) 87 2 (2.30)
2- 583 21 (3.60) 256 3 (1.17) 76 1 (1.32)
3- 724 52 (7.18) 379 17 (4.49) 206 11 (5.34)
4- 689 56 (8.13) 452 23 (5.09) 476 21 (4.41)
5- 753 62 (8.23) 394 25 (6.35) 451 7 (1.55)
6- 926 48 (5.18) 464 8 (1.72) 319 10 (3.13)
7- 1,009 55 (5.45) 411 9 (2.19) 438 11 (2.51)
8- 1,065 49 (4.60) 455 14 (3.08) 521 15 (2.88)
9- 1,250 54 (4.32) 530 16 (3.02) 521 20 (3.84)
10- 1,318 50 (3.79) 500 9 (1.80) 596 13 (2.18)
11- 1,270 36 (2.83) 363 7 (1.93) 564 10 (1.77)
12- 1,253 39 (3.11) 301 4 (1.33) 750 14 (1.87)
13- 476 21 (4.41) 536 8 (1.49) 446 6 (1.35)
14-15 116 2 (1.72) 235 3 (1.28) 83 1 (1.20)