Diagnosis Number of cases Incidence per 100,000 py* MH-IRR 95% CI
All diagnoses
Children of referents 107 13.01 (1.00) -
Children of fishermen 39 18.02 1.38 0.96-2.00
West coast 25 21.99 1.69 1.09-2.61
East coast 14 14.30 1.10 0.63-1.92
Leukaemia
Children of referents 23 2.80 (1.00) -
Children of fishermen 8 3.70 1.30 0.58-2.92
West coast 4 3.52 1.24 0.43-3.58
East coast 4 4.08 1.45 0.50-4.20
Leukaemia, ALL
Children of referents 10 1.22 (1.00) -
Children of fishermen 7 3.23 2.65 1.005-6.97
West coast 4 3.52 2.87 0.90-9.17
East coast 3 3.06 2.52 0.69-9.16
Leukaemia, other
Children of referents 13 1.58 (1.00) -
Children of fishermen 1 0.46 0.28 0.04-2.19
West coast 0 0.00 - -
East coast 1 1.02 0.64 0.08-4.90
Lymphomas
Children of referents 18 2.19 (1.00) -
Children of fishermen 6 2.77 1.27 0.50-3.21
West coast 6 5.28 2.43 0.97-6.13
East coast 0 0.00 - -
Lymphomas, Hodgkin´s disease
Children of referents 9 1.09 (1.00) -
Children of fishermen 2 0.92 0.86 0.19-3.98
West coast 2 1.76 1.66 0.36-7.65
East coast 0 0.00 - -
Lymphomas, Non-Hodgkin
Children of referents 9 1.09 (1.00) -
Children of fishermen 4 1.85 1.68 0.52-5.44
West coast 4 3.52 3.19 0.98-10.4
East coast 0 0.00 - -
CNS tumours, all types
Children of referents 27 3.28 (1.00) -
Children of fishermen 6 2.77 0.84 0.35-2.04
West coast 5 4.40 1.33 0.51-3.47
East coast 1 1.02 0.31 0.04-2.29
CNS tumours, malignant
Children of referents 23 2.80 (1.00) -
Children of fishermen 6 2.77 0.99 0.40-2.42
West coast 5 4.40 1.56 0.59-4.11
East coast 1 1.02 0.36 0.05-2.69
CNS tumours, benign
Children of referents 4 0.49 (1.00) -
Children of fishermen 0 0.00 - -
West coast 0 0.00 - -
East coast 0 0.00 - -
Neuroblastoma
Children of referents 1 0.12 (1.00) -
Children of fishermen 1 0.46 3.64 0.23-57.9
West coast 1 0.88 6.88 0.42-112
East coast 0 0.00 - -
Retinoblastoma
Children of referents 1 0.12 (1.00) -
Children of fishermen 2 0.92 7.28 0.66-80.1
West coast 2 1.76 13.8 1.24-153
East coast 0 0.00 - -
Renal tumours
Children of referents 1 0.12 (1.00) -
Children of fishermen 1 0.46 3.64 0.23-58.2
West coast 0 0.00 - -
East coast 1 1.02 8.14 0.51-130
Hepatic tumours
Children of referents 0 0.00 (1.00) -
Children of fishermen 1 0.46 - -
West coast 0 0.00 - -
East coast 1 1.02 - -
Malignant bone tumours
Children of referents 9 1.09 (1.00) -
Children of fishermen 3 1.39 1.28 0.35-4.73
West coast 2 1.76 1.64 0.36-7.58
East coast 1 1.02 0.93 0.12-7.38
Soft tissue sarcomas
Children of referents 5 0.61 (1.00) -
Children of fishermen 2 0.92 1.48 0.29-7.55
West coast 1 0.88 1.39 0.17-11.6
East coast 1 1.02 1.66 0.19-14.2
Germ cell and gonadal tumours
Children of referents 9 1.09 (1.00) -
Children of fishermen 1 0.46 0.43 0.05-3.36
West coast 0 0.00 - -
East coast 1 1.02 0.94 0.12-7.39
Carcinomas, epithelial neoplasms
Children of referents 9 1.09 (1.00) -
Children of fishermen 6 2.77 2.59 0.92-7.27
West coast 3 2.64 2.49 0.68-9.19
East coast 3 3.06 2.82 0.76-10.4
Other and unspecified
Children of referents 4 0.49 (1.00) -
Children of fishermen 2 0.92 1.93 0.35-10.5
West coast 1 0.88 1.84 0.21-16.3
East coast 1 1.02 2.11 0.24-18.9
*Incidence per 100000 person years (py) calculated on 822351 py for referent children, 216455 py for fishermen children (113663 py west coast, 97923 py east coast).
Table 2: Mantel-Haenszel incidence rate ratios (MH-IRR) of fishermen children: All, west coast, east coast versus all referent children. Adjustment was made for age in 5 year intervals (0-4, 5-9, 10-14, 15-19 years) and gender.