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Table 1 Demographics of participants

From: Effects of 60 Hz magnetic fields on teenagers and adults

 

Adult

Teenager

P-value

No. of subjects (n)

30

30

-

Male: female

15 : 15

14 : 16

0.796

Age (yr)

27.9 ± 5.9

14.8 ± 1.4

0.000

Height (cm)

166.4 ± 7.2

166.4 ± 6.9

0.985

Weight (kg)

58.4 ± 7.7

57.0 ± 10.6

0.304

body mass index (kg/m2)

21.0 ± 1.8

20.5 ± 2.8

0.110

Non-smoker: smoker

25 : 5

26 : 4

1.000

Computer usage time (h/d)

6.5 ± 3.9

2.3 ± 1.7

0.000

TV viewing time (h/d)

1.4 ± 1.6

1.9 ± 1.8

0.068

Mobile phone usage periods (yr)

9.9 ± 2.9

4.5 ± 1.9

0.000