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Table 2 Malaria prevalence rates during the wet season from three sites in Myanmar comparing preserved capillary blood to dried blood spots (DBS)

From: A novel method for extracting nucleic acids from dried blood spots for ultrasensitive detection of low-density Plasmodium falciparum and Plasmodium vivax infections

Species

Rakhine (n = 198)

Ayeyarwady (n = 195)

Kachin (n = 200)

Overall (n = 593)

Blood/Qiagen

DBS/NEM

Blood/Qiagen

DBS/NEM

Blood/Qiagen

DBS/NEM

Blood/Qiagen

DBS/NEM

Kappa (95% CI)

Pf (%)

11.0

11.0

7.7

8.7

0.5

0.5

6.4

6.7

0.92 (0.85–0.98)

Pv (%)

8.5

8.5

5.1

5.6

1.0

0.0

4.9

4.7

0.89 (0.80–0.98)

Mixed (%)

3.5

3.5

0.0

0.0

0.0

0.0

1.2

1.2

1.0 (1.0–1.0)

  1. Pf, Plasmodium falciparum monoinfection; Pv, P. vivax monoinfection; Mixed, Mixed Pf and Pv; Blood, preserved capillary blood; Qiagen, Qiagen extraction method; DBS, Whatman 3MM dried blood spot; NEM, new extraction method; 95% CI., 95% confidence interval