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Table 1 Summarizes the demographic data of the participants

From: Reference values of impulse oscillometry (IOS) for healthy Chinese children aged 4–17 years

Age, years Boys Girls
N Height, cm Weight, kg N Height, cm Weight, kg
4 62 109.97 ± 7.51 19.56 ± 4.39 25 109.28 ± 4.84 17.91 ± 1.75
5 168 115.16 ± 6.12 21.82 ± 4.72 132 114.91 ± 5.69 20.01 ± 2.90
6 322 122.29 ± 6.72 24.22 ± 5.09 265 121.51 ± 6.25 21.93 ± 3.20
7 301 128.46 ± 6.58 27.68 ± 5.61 248 127.26 ± 5.84 25.07 ± 3.53
8 326 132.98 ± 7.05 30.78 ± 7.49 301 131.95 ± 6.50 27.88 ± 4.69
9 331 139.33 ± 7.39 35.89 ± 9.85 290 137.21 ± 7.33 31.10 ± 5.97
10 309 144.88 ± 7.13 440.58 ± 11.57 295 144.35 ± 7.94 36.04 ± 7.32
11 312 149.65 ± 7.68 43.85 ± 10.60 254 150.35 ± 7.38 40.23 ± 7.59
12 238 157.13 ± 10.14 50.19 ± 15.30 230 155.77 ± 6.78 45.50 ± 8.05
13 265 163.99 ± 8.56 54.90 ± 13.60 241 159.30 ± 6.58 50.20 ± 7.83
14 193 168.30 ± 7.87 59.87 ± 15.53 185 160.06 ± 7.10 51.64 ± 8.59
15 195 172.05 ± 7.89 64.29 ± 14.03 178 161.50 ± 5.88 53.54 ± 7.83
16 169 174.49 ± 6.26 66.32 ± 13.25 141 162.42 ± 6.52 55.57 ± 8.95
17 154 174.32 ± 6.03 68.83 ± 15.47 140 161.69 ± 5.67 55.07 ± 7.97
Total 3345    2925