Table 2 Characteristics of Asahikawa children
From: Biomonitoring of mercury, cadmium, and lead exposure in Japanese children: a cross-sectional study
All | Boys | Girls | |
|---|---|---|---|
Number (%) | 229 (100) | 118 (52) | 111 (48) |
Age in month (mean (SD)) | 108.9 (3.6) | 109.1 (3.5) | 108.7 (3.7) |
Height in cm (mean (SD)) | 137.3 (6.1) | 137.1 (6.0) | 137.5 (6.2) |
Weight in kg (mean (SD)) | 33.6 (7.4) | 34 (7.6) | 33.1 (7.1) |
BMI (n (%)) | |||
Underweight (<5th percentile) | 4 (2) | 1 (1) | 3 (3) |
Normal (5th–<85th) | 162 (71) | 81 (69) | 81 (73) |
Overweight (85th–<95th) | 47 (20) | 27 (23) | 20 (18) |
Obese (≥95th) | 16 (7) | 9 (7) | 7 (6) |
Secondhand smoke exposure (n (%)) | |||
No | 132 (58) | 74 (63) | 58 (52) |
Yes | 97 (42) | 44 (37) | 53 (48) |