Demographic profile of malaria patients recruited into the case-control study

§Provinces in north-western part of Thailand (Tak, Mae Hongson, Chiengrai, Chiengmai, and Myanmar border), western part (Prajuabkirikun, Ratchaburi, Kanchanaburi), eastern areas (Prajeanburi, Chanthaburi, Trad and Cambodia border), and central part of Thailand (Chaiyapoom, Kumpangpet, Lumpang, Nakornnayok, and Phitsanulok). *Variables that were significantly different between the groups (gender, year, and history of previous malaria) were adjusted for in the case-control analysis of parasite polymorphisms.