Table 1. Summary characteristics of the study population.
| Year of survey | Variable | Parasite negative (Median, IQR) | Parasite positive (Median, IQR) |
| 2007 | Number sampled | 269 | 50 |
| Age (years) | 4.5 (3.1, 6.4) | 5.8 (4.1, 6.6) | |
| Monocyte count (x103/µl of blood) | 0.64 (0.49, 0.86) | 0.69 (0.49, 0.85) | |
| Lymphocyte count (x103/µl of blood) | 3.69 (2.87, 4.83) | 3.78 (3.12, 4.39) | |
| ML ratio | 0.17 (0.14, 0.21) | 0.19 (0.13, 0.22) | |
| 2008 | Number sampled | 226 | 93 |
| Age (years) | 5.0 (3.2, 7.1) | 6.7 (5.1, 7.7) | |
| Monocyte count (x103/µl of blood) | 0.50 (0.37, 0.65) | 0.46 (0.37, 0.58) | |
| Lymphocyte count (x103/µl of blood) | 3.26 (2.4, 4.52) | 2.65 (2.00, 3.58) | |
| ML ratio | 0.15 (0.12, 0.19) | 0.17 (0.13, 0.23) | |
| 2009 | Number sampled | 264 | 68 |
| Age (years) | 6.0 (3.7, 8.0) | 7.2 (5.6, 8.5) | |
| Monocyte count (x103/µl of blood) | 0.59 (0.47, 0.76) | 0.65 (0.49, 0.83) | |
| Lymphocyte count (x103/µl of blood) | 3.49 (2.85, 4.75) | 3.50 (2.90, 4.25) | |
| ML ratio | 0.16 (0.13, 0.21) | 0.19 (0.15, 0.23) | |
| 2010 | Number sampled | 242 | 85 |
| Age (years) | 6.5 (3.4, 9.1) | 7.8 (6.6, 9.2) | |
| Monocyte count (x103/µl of blood) | 0.60 (0.47, 0.77) | 0.63 (0.50, 0.76) | |
| Lymphocyte count (x103/µl of blood) | 3.44 (2.69, 4.43) | 3.26 (2.58, 4.07) | |
| ML ratio | 0.18 (0.14, 0.22) | 0.19 (0.15, 0.25) | |
| 2011 | Number sampled | 276 | 80 |
| Age (years) | 7.2 (3.6, 9.7) | 9.2 (7.1, 10.7) | |
| Monocyte count (x103/µl of blood) | 0.61 (0.43, 0.92) | 0.64 (0.53, 0.84) | |
| Lymphocyte count (x103/µl of blood) | 3.41 (2.70, 4.44) | 3.18 (2.58, 3.88) | |
| ML ratio | 0.18 (0.13, 0.24) | 0.20 (0.17, 0.26) |
Presented are the medians and interquartile ranges (IQR) for age, monocyte count, lymphocyte count and ML ratio at the time of survey for children recruited in each respective cross-sectional survey. The data are shown by year of survey and are stratified by parasite positive/negative status at the time of survey.