| | |
Univariate Results
|
Multivariate Results
|
---|
Covariate
|
Stratum
|
n
|
Prevalence ratio for specificity
|
(95% CI)
|
p-value
|
Prevalence ratio for specificity
|
(95% CI)
|
p-value
|
---|
HIV status
| | | | | | | | |
|
Negative
|
19
|
1
| | |
1
| | |
|
Positive
|
50
|
2.945
|
(1.193–7.272)
|
0.019
|
2.619
|
(1.045 – 6.561)
|
0.040
|
Sex
| | | | | | | | |
|
Female
|
30
|
1
| | |
1
| | |
|
Male
|
39
|
0.577
|
(0.359 – 0.927)
|
0.023
|
0.694
|
(0.440 – 1.097)
|
0.118
|
- The results of a Poisson regression included only gold standard positive participants. The outcome variable (sensitivity) was coded as 1 for true positive LAM results and as 0 for false negative LAM results. Apart from age and sex no other predictors were included into the multivariate model.
- Prevalence ratio for specificity = probability to receive a (correct) positive LAM result for TB infected patients who are HIV+ve or male, divided by probability to receive a (correct) positive LAM result for TB infected patients who are HIV-ve or female.