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Table 2 The proportion eating raw freshwater fish in different groups of C. sinensis infection based on different diagnostic standards

From: Improving diagnostic performance of the Kato-Katz method for Clonorchis sinensis infection through multiple samples

No. of smears

Positive cases

Negative cases

False negative cases

N

Consuming raw fish

Not consuming raw fish

Unclear data

N

Consuming raw fish

Not consuming raw fish

Unclear data

N

Consuming raw fish

Not consuming raw fish

Unclear data

n (%)a

n

n

n (%)a

n

n

n (%)a

n

n

1 stool × 1 smear

45

32 (72.7)b

12

1

352

101 (28.9)c

249

2

32

21 (67.7)d

10

1

1 stool × 2 smears

49

35 (72.9)e

13

1

348

98 (28.3)f

248

2

28

18 (66.7)g

9

1

1 stool × 3 smears

55

39 (73.6)h

14

2

342

94 (27.6)i

247

1

22

14 (63.6)j

8

0

2 stools × 1 smear

64

43 (68.3)k

20

1

333

90 (27.2)l

241

2

13

10 (83.3)m

2

1

2 stools × 2 smears

73

50 (69.4)n

22

1

324

83 (25.8)o

239

2

4

3 (100.0)p

0

1

2 stools × 3 smears

77

53 (70.7)q

22

2

320

80 (25.1)

239

1

0

0

0

0

  1. aNo. with unclear data was not included in the calculation of the proportion
  2. bχ2 = 33.64, df = 1, P < 0.001, positive cases vs negative cases
  3. cχ2 = 19.78, df = 1, P < 0.001, negative cases vs false negative cases
  4. dχ2 = 0.22, df = 1, P = 0.641, positive cases vs false negative cases
  5. eχ2 = 37.49, df = 1, P < 0.001, positive cases vs negative cases
  6. fχ2 = 17.18, df = 1, P < 0.001, negative cases vs false negative cases
  7. gχ2 = 0.33, df = 1, P = 0.568, positive cases vs false negative cases
  8. hχ2 = 43.44, df = 1, P < 0.001, positive cases vs negative cases
  9. iχ2 = 12.87, df = 1, P < 0.001, negative cases vs false negative cases
  10. jχ2 = 0.74, df = 1, P = 0.389, positive cases vs false negative cases
  11. kχ2 = 39.91, df = 1, P < 0.001, positive cases vs negative cases
  12. lFisher’s exact test, P < 0.001, negative cases vs false negative cases
  13. mFisher’s exact test, P = 0.491, positive cases vs false negative cases
  14. nχ2 = 50.18, df = 1, P < 0.001, positive cases vs negative cases
  15. oFisher’s exact test, P = 0.018, negative cases vs false negative cases
  16. pFisher’s exact test, P = 0.551, positive cases vs false negative cases
  17. qχ2 = 56.44, df = 1, P < 0.001, positive cases vs negative cases
  18. Abbreviation: N, total number of cases
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Parasites & Vectors

ISSN: 1756-3305

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