Table 3 Mean hemoglobin level and prevalence of anemia among rural primary school children in North Central Province, Sri Lanka

 Kabathigollawa

23.1(N = 165)

12.02

0.95

F = 16.12, p = 0.001

 Galenbindunuwewa

21.4(N = 110)

12.03

0.92

 Anuradhapura

17.7(N = 67)

12.08

0.84

 Thabuththegama

20.5(N = 103)

12.12

0.90

 Dibulagala

14.3(N = 77)

12.20

0.81

 Kekirawa

14.5(N = 54)

12.22

0.83

 Higurakgoda

13.0(N = 109)

12.34

0.85

 Polonnaruwa

12.2(N = 68)

12.42

0.92

 Less than 3

16.3(N = 403)

12.21

0.88

t = 2.413, p = 0.016

 3 or more

18.3(N = 286)

12.14

0.92

  < $1

20.2(N = 59)

12.15

0.89

F = 1.444, p = 0.194

 $1-2

16.1(N = 63)

12.24

0.94

 $2-3

16.8(N = 90)

12.17

0.92

 $3-4

11.6(N = 13)

12.25

0.88

 $4-8

17.8(N = 278)

12.15

0.88

 $8-12

15.7(N = 93)

12.23

0.88

  > $12

19.0(N = 27)

12.27

0.84

 Primary

16.5 (N = 126)

12.12

0.87

F = 7.236, p = 0.001

 Up to O/L

17.6 (N = 483)

12.19

0.90

 Above O/L

14.3 (N = 67)

12.32

0.88

 Primary

17.4 (N = 107)

12.13

0.88

F = 5.330, p = 0.005

 Up to O/L

17.5 (N = 477)

12.17

0.91

 Above O/L

15.4 (N = 104)

12.28

0.85

 Within 3 months

15.9 (N = 449)

12.21

0.87

F = 1.087, p = 0.337

 3 to 6 months back

19.0 (N = 170)

12.16

0.92

 Before 6 months

15.7 (N = 30)

12.17

0.86

  < 1^st Quartile

17.5 (N = 331)

12.18

0.91

F = 0.689, p = 0.559

 1^st to 2^nd Quartile

15.6 (N = 149)

12.21

0.88

 2^nd to 3^rd Quartile

18.3 (N = 87)

12.14

0.89

  > 4^th Quartile

18.2 (N = 106)

12.19

0.88

  < 1st Quartile

16.8 (N = 281)

12.20

0.91

F = 0.247, p = 0.864

 1^st to 2^nd Quartile

17.1 (N = 143)

12.17

0.96

 2^nd to 3^rd Quartile

17.4 (N = 114)

12.17

0.85

  > 4th Quartile

17.4 (N = 141)

12.18

0.84