Table 2.
Thick smear and HRP2-based RDT results for 723 subjects and thin smear and HRP2-based RDT results for 641 subjects
| Positive | Negative | Totals | |
|---|---|---|---|
| Thick smear for asexual P. falciparum parasites | |||
| Positive HRP2-based RDT | 454 | 52 | 506 |
| Negative HRP2-based RDT | 26 | 191 | 217 |
| Totals | 480 | 243 | 723 |
| Thin smear for asexual P. falciparum parasites | |||
| Positive HRP2-based RDT | 355 | 81 | 436 |
| Negative HRP2-based RDT | 18 | 187 | 205 |
| Totals | 373 | 268 | 641 |
Comparison of thick smear and HRP2-based RDT results. The results obtained using McNemar's test for paired samples indicate that there were significant differences in the frequencies of positive and negative test results for the thick smear and the HRP2-based RDT [χ2 = 8.013, P = 0.005, odds ratio = 2.000 (95% confidence interval [CI] = 1.226–3.337)]. Comparison of thin smear and HRP2-based RDT results. The results obtained using McNemar's test for paired samples indicate that there were significant differences in the frequencies of positive and negative test results for the thick smear and the HRP2-based RDT (χ2 = 38.828, P < 0.001, odds ratio = 4.500 [95% CI = 2.676–7.971]).