Table 3 Comparison of degree of precision in parasite index by measured and assumed total leucocyte counts among Plasmodium vivax patients of five primary health centres

4,000 cell/μL

0

99.2

0.8

1,180 (365, 3,185)

−4.2

<0.001

4,500 cell/μL

0

98.4

1.6

1,328 (411, 3,583)

−2.0

0.04

5,000 cell/μL

0

96.9

3.1

1,475 (456, 3,981)

−0.6

0.5 ^¶

5,500 cell/μL

0

95.3

4.7

1,623 (502, 4,380)

−3.1

<0.002

6,000 cell/μL

0

94.5

5.5

1,770 (548, 4,778)

−5.1

<0.001

6,500 cell/μL

0

93

7

1,918 (593, 5,176)

−6.9

<0.001

7,000 cell/μL

0

92.9

7.1

2,065 (639, 5,574)

−7.9

<0.001

7,500 cell/μL

0

91.4

8.6

2,213 (684, 5,972)

−8.6

<0.001

8,000 cell/μL

0

89.8

10.2

2,360 (730, 6,370)

−9.4

<0.001

8,500 cell/μL

0

87.5

12.5

2,508 (776, 6,768)

−9.7

<0.001

9,000 cell/μL

0

85.2

14.8

2,656 (821, 7,166)

−9.8

<0.001

9,500 cell/μL

0

82.4

17.6

2,803 (867, 7,564)

−9.8

<0.001

10,000 cell/μL

0

77.2

22.8

2,950 (913, 7,963)

−9.8

<0.001

10,500 cell/μL

0

74

26

3,098 (958, 8,361)

−9.8

<0.001

11,000 cell/μL

0

71.1

28.9

3,245 (1,004, 8,759)

−9.8

<0.001