Table 3 Malariometric indices
From: Epidemiology of forest malaria in central Vietnam: a large scale cross-sectional survey
Indicators (N = 4,306) | n (%) | [95%CI] |
|---|---|---|
- Prevalence of fever cases | 668 (15.5) | [12.5; 18.5] |
- Fever cases attributable to malaria | 125 (18.7) | [13.7; 23.7] |
- Spleen rate (n = 301) | 301 (7.0) | [4.3; 9.7] |
- Median age if enlarged spleen [range] | 30 y | [11; 60] |
- Mean parasite rate | 571 (13.3) | [10.6; 15.9] |
- Species distribution (n = 571): | ||
P. falciparum | 276 (48.3) | [41.3; 55.3] |
P. vivax | 261 (45.7) | [39.0; 52.4] |
P. malariae | 3 (0.5) | [0; 1.1] |
Mixed infections | 31 (5.4) | [3.2; 7.6] |
- Parasite density/μl (geometric mean): | ||
P. falciparum | 178.3 | [141.2; 225.2] |
P. vivax | 51.5 | [44.0; 60.3] |
- Proportion of asymptomatic infections | 423 (74.1) | [67.8; 80.4] |
- P. falciparum sero-prevalence (N = 4,253) | 1,085 (25.5) | [20.7; 30.3] |