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Table 1 Characteristics of the randomly selected samples for the analysis of molecular markers of drug resistance from cross sectional surveys in December 2001 (Cross1) and January 2003 (Cross 2)

From: Rapid increase of Plasmodium falciparum dhfr/dhps resistant haplotypes, after the adoption of sulphadoxine-pyrimethamine as first line treatment in 2002, in southern Mozambique

  Cross1 N = 171 Cross2 N = 173 P-value
Median age (years) (25–75% percentile) 14 (8.0–27.8) 11 (6.0–23.5) 0.013
Gender, male (%) 43.3 45.7 0.772
Median P. falciparum density, parasites/μl (25–75% percentile) 125 (63–423) 332 (84–2242) < 0.001
Donors with temperature >37.5°C (%) 4.1 4.6 0.982
  1. P-values: Mann-Whitney Rank Sum Test or χ2-tests comparisons between the two cross sectional surveys.