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Table 4 Comparison between percentages of volunteers who remembered being infected by worms

From: Recall of intestinal helminthiasis by HIV-infected South Africans and avoidance of possible misinterpretation of egg excretion in worm/HIV co-infection analyses

 

HIV-positives

HIV-negatives

Comparison of %

Recall of worms1

Numbers

%

95% CI

Numbers

%

95% CI

Difference

95% CI4

At any age

122/1672

73.1

65.9, 79.2

51/65

78.5

67.0, 86.7

-5.4

-16.4, 7.6

As a child

99/1672

59.3

51.7, 66.4

31/65

47.7

36.0, 59.6

11.6

-2.5, 25.3

As a child and as an adult

47/1653

28.5

22.1, 38.5

8/65

12.3

6.4, 22.5

16.2*

4.2, 25.6

As an adult (only)

70/1653

42.4

35.1, 50.1

28/65

43.1

31.8, 55.2

-0.7

-14.8, 13.0

No recall of worms

45/1672

26.9

20.8, 34.1

14/65

21.5

13.3, 33.0

5.4

-7.6, 16.4

  1. CI = confidence interval.
  2. 1Child = up to 15th birthday. Adult = after 15th birthday.
  3. 2The reduction from n = 170 is because three individuals were uncertain about whether they had, or had not, seen worms in faeces; hence, n = 167.
  4. 3Of the 167 who gave definitive answers on infection, two knew that they had been infected as children but were not sure if they had been infected when adults; hence, n = 165.
  5. 4CIs which exclude zero indicate that the HIV-positives and HIV-negatives were significantly different (p < 0.05) [41].
  6. *Significantly more HIV-positives remembered having been infected by worms as both a child and an adult (p < 0.05).
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BMC Infectious Diseases

ISSN: 1471-2334

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