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Table 7 Characteristics of false positives compared with true positives

From: Evaluation of HIV testing algorithms in Ethiopia: the role of the tie-breaker algorithm and weakly reacting test lines in contributing to a high rate of false positive HIV diagnoses

Variable

 

False positives

True positives

p value

N (%)

N (%)

Age

Average

29 years

32 years

p = 0.041*

Sex

Male

16 (100)

111 (54.7)

p = 0.000*

 

Female

0

92 (45.3)

 

Site

Humera

4 (25.0)

134 (66.0)

p = 0.002*

Abdurafi

12 (75.0)

113 (34.0)

Residence status

Migrant

6 (37.5)

60 (29.6)

p = 0.339

Settler

0

18 (8.8)

Resident

10 (62.5)

89 (43.8)

Commercial sex worker

0

23 (11.3)

Other

0

13 (6.4)

Date of visit**

Mean days

122

176

p = 0.025*

CD4

Median

491[107–992]

271 [8–1051]

p = 0.010*

[range]

Visceral Leishmaniasis

Positive

2 (12.5)

3 (1.5)

p = 0.044*

Negative

14 (87.5)

200 (98.5)

  1. *Significant at an alpha level of 0.05.
  2. **Days from date of first recruitment.