| Children participating (n = 947) n (%) | Total number of observations (n = 3,573) n (%) |
---|---|---|
Gender | Â | Â |
Male | 454 (48) | 1,674 (47) |
Age at enrollment | Â | Â |
7-11 | 795 (84) | 3,053 (85) |
12-15 | 133 (14) | 500 (14) |
≥16- < 17 | 19 (2) | 20 (0.6) |
Age at the examination, years | mean ± std 11.2 ± 2.6 | |
Year of birth | Â | |
1979 | 1 (0.1) | 2 (0.1) |
1980 | 57 (6) | 205 (6) |
1981 | 61 (6) | 267 (7) |
1982 | 102 (11) | 482 (13) |
1983 | 121 (13) | 566 (16) |
1984 | 114 (12) | 588 (16) |
1985 | 90 (9) | 457 (13) |
a | - | - |
1987 | 83 (9) | 331 (9) |
1988 | 101 (11) | 296 (8) |
1989 | 103 (11) | 217 (6) |
1990 | 67 (7) | 115 (3) |
1991 | 47 (5) | 47 (1) |
Year of first participation | Â | Â |
1993 | 484 (51) | 2,471 (69) |
1994 | 76 (8) | 322 (9) |
1995 | 77 (8) | 267 (7) |
1996 | 56 (6) | 148 (4) |
1997 | 190 (20) | 301 (8) |
1998 | 64 (7) | 64 (2) |
Quintiles of the area contamination: 137Cesium (kBq/m2) | Â | Â |
51-104 | 158 (17) | 580 (16) |
105-127 | 193 (20) | 699 (19) |
128-219 | 221 (23) | 852 (24) |
220-318 | 165 (17) | 492 (14) |
319-356 | 210 (22) | 950 (27) |