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Table 1 Seroprevalence and symptoms of strongyloidiasis according to age groups

From: Strongyloidiasis in northern Vietnam: epidemiology, clinical characteristics and molecular diagnosis of the causal agent

 

Age groups (years)a

16–25

26–35

36–45

46–55

56–65

> 65

Seroprevalence

19.46 (58/298)

19.02 (70/268)

19.27 (69/358)

20.50 (68/322)

20.45 (73/357)

21.55 (64/297)

Diarrhoea

53.45 (31/58)

60.00 (42/70)

65.22 (45/69)

65.15 (43/66)

67.12 (49/73)

75.00 (48/64)

Digestive disorder

51.72 (30/58)

52.85 (37/70)

56.52 (39/69)

62.12 (41/66)

58.90 (43/73)

65.63 (42/64)

Stomachache

43.10 (25/58)

41.42 (29/70)

44.93 (31/69)

45.45 (30/66)

47.95 (35/73)

50.00 (32/64)

Stomach and duodenal ulcers

39.66 (24/58)

42.85 (30/70)

44.93 (30/69)

43.94 (28/66)

45.21 (32/73)

51.56 (33/64)

Itching

24.14 (14/58)

24.29 (17/70)

24.64 (17/69)

28.79 (19/66)

31.51 (25/73)

34.38 (22/64)

Fever

5.17 (2/58)

7.14 (5/70)

10.14 (7/69)

9.10 (6/66)

10.96 (8/73)

14.06 (9/64)

Bloody stool

3.45 (2/58)

5.71 (4/70)

8.70 (6/69)

9.10 (6/66)

9.59 (7/73)

10.94 (7/64)

  1. aData are given as prevalence (in %) (no. of positive patients/no. of examined patients)