Fig. 2

Adjusted mean hemoglobin concentrations (g/dL) by levels of residential ¹³⁷Cs soil contamination. In midyear 1995, the food supplementation at school was reduced from 3 to 2 meals per day. Linear models with repeated measures adjusted for food supplementation (2 meals/day vs. 3 meals/day), gender, age (continuous), and food × time interaction. The analyses were stratified by levels of residential ¹³⁷Cs soil contamination