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Table 1 Anthropometric and physiologic characteristics of subjects.

From: Effects of long-term exposure to air pollution on respiratory function and physical efficiency of pre-adolescent children

Variable

Male (n = 55)

Female (n = 48)

Age (yr)

15.2 ± 2.3

15.4 ± 0.7

Body height (cm)

165.0 ± 25.0

160.1 ± 6.9*

Body mass (kg)

56.4 ± 14.9

51.4 ± 9.3

BMI (kg/m2)

20.7 ± 4.2

20.3 ± 1.5

VC (L)

4.1 ± 0.85

3.0 ± 0.4**

VC (%pred)

89.0 ± 21.5

81.4 ± 15.8*

FEV1 (L)

3.3 ± 3.2

2.5 ± 2.3*

EV11 (%pred)

78.6 ± 13.5

75.8 ± 12.5

EV11/VC (%)

80.2 ± 14.4

82.6 ± 7.8

VO2Max (L/min)

3.3 ± 0.7

2.9 ± 0.4*

MVV (L/min)

112.0 ± 35.2

80.4 ± 19.5**

ExT (min)

3.9 ± 0.9

2.7 ± 0.4

Norm - ExT (L)

0.3 ± 0.01

0.2 ± 0.02

  1. Data are means ± SD. BMI - body mass index, VC - vital capacity, FEV1 - forced expiratory volume in one second, VO2Max - maximal oxygen uptake, MVV - maximum voluntary volume, ExT - result in exercise test. *P < 0.05; **P < 0.01 significant differences between female and male.