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Table 3 Relationships between school-based food supplementation and blood indices, 1993-1998

From: Dietary supplementation with radionuclide free food improves children's health following community exposure to 137Cesium: a prospective study

Blood index (and BMI)

Adjusted meana (95 % CI)

3 meals/d

2 meals/d

1993

1994

1995

1996

1997

1998

Hemoglobin (g/dL)

12.14 (12.05-12.22)

12.55 (12.46-12.63)

12.63 (12.56-12.71)

12.46 (12.39-12.52)

12.90 (12.84-12.97)

12.72 (12.66-12.79)

Erythrocytes (x1012/L)

3.93 (3.90-3.95)

3.99 (3.97-4.01)

4.10 (4.07-4.12)

4.02 (4.00-4.04)

4.21 (4.19-4.23)

4.17 (4.15-4.19)

Platelets (x109/L)

225.88 (221.74-230.03)

246.12 (241.94-250.33)

241.12 (236.87-245.45)

254.47 (249.91-259.12)

278.86 (274.21-283.61)

273.88 (268.73-279.11)

Leukocytes (x109/L)

5.14 (5.01-5.27)

5.82 (5.67-5.97)

6.31 (6.16-6.46)

6.76 (6.61-6.91)

7.32 (7.16-7.47)

7.24 (7.07-7.41)

Lymphocytes (x109/L)

1.97 (1.92-2.03)

2.12 (2.06-2.19)

2.27 (2.20-2.33)

2.35 (2.29-2.40)

2.57 (2.51-2.63)

2.60 (2.53-2.67)

Monocytes (x109/L)

0.30 (0.28-0.31)

0.42 (0.40-0.44)

0.52 (0.50-0.54)

0.49 (0.47-0.51)

0.61 (0.59-0.63)

0.60 (0.58-0.63)

Platelet/lymphocyte ratio

114.40 (110.85-118.07)

115.85 (112.10-119.73)

106.36 (103.24-109.56)

108.52 (105.57-111.53)

108.77 (105.97-111.62)

105.19 (102.04-108.43)

Neutrophil/lymphocyte ratio

1.27 (1.22-1.31)

1.32 (1.27-1.37)

1.34 (1.29-1.39)

1.46 (1.42-1.51)

1.39 (1.35-1.43)

1.32 (1.28-1.37)

Basophils (x109/L)

0.049 (0.046-0.052)

0.064 (0.061-0.068)

0.062 (0.058-0.066)

0.059 (0.056-0.063)

0.078 (0.074-0.083)

0.077 (0.073-0.082)

Neutrophils (x109/L)

2.50 (2.42-2.58)

2.80 (2.71-2.90)

3.03 (2.94-3.13)

3.43 (3.32-3.53)

3.56 (3.46-3.66)

3.43 (3.33-3.54)

Eosinophils (x109L)

0.18 (0.17-0.19)

0.22 (0.21-0.24)

0.22 (0.21-0.24)

0.23 (0.22-0.24)

0.26 (0.24-0.27)

0.27 (0.26-0.29)

Immunoglobulin A (g/L)

0.71 (0.62-0.79)

0.78 (0.70-0.85)

0.88 (0.81-0.95)

0.96 (0.89-1.03)

0.95 (0.88-1.01)

0.91 (0.83-0.99)

Immunoglobulin G (g/L)

4.93 (4.35-5.51)

5.44 (4.94-5.94)

6.16 (5.70-6.62)

6.67 (6.22-7.12)

6.55 (6.12-6.97)

6.33 (5.82-6.85)

Immunoglobulin M (g/L)

0.52 (0.46-0.59)

0.62 (0.56-0.68)

0.69 (0.63-0.74)

0.77 (0.71-0.82)

0.75 (0.70-0.80)

0.72 (0.66-0.78)

BMI kg/m2

17.22 (16.99-17.44)

17.16 (16.96-17.36)

17.45 (17.27-17.63)

17.67 (17.50-17.83)

17.75 (17.60-17.89)

17.78 (17.61-17.94)

  1. Detailed legend: From 1993 through the spring 1995 children received 3 radiation free meals at school. After the summer break, in the fall 1995, the food supplementation at school was reduced to 2 meals per day
  2. aLinear models with repeated measures adjusted for the food supplementation (2 meals/day vs. 3 meals/day), gender, age (continuous), interquartile range normalized 137Cs soil contamination levels in the area of residence and food × time interaction. Generalized estimating equations (GEE) with exchangeable correlation structure were used to estimate parameters. The following blood indices were log-transformed for the analyses and back-transformed for presentation to yield geometric means and 95 % CI: basophils, eosinophils, leukocytes, lymphocytes, monocytes, neutrophils, platelets, platelet/lymphocyte ratio, and neutrophil/lymphocyte ratio
  3. CI: Confidence interval