The epidemiology of subclinical malaria infections in South-East Asia: findings from cross-sectional surveys in Thailand–Myanmar border areas, Cambodia, and Vietnam

Table 6 Adjusted odds ratios for being HVUSqPCR positive (n = 967), stratified by site, using random effects modelling (n total = 4807)

Factor	No. HVUSqPCR positive with factor (%)	No. HVUSqPCR positive without factor (%)	Adj. odds ratio	95 % CI
History of fever	105/356 (30 %)	862/4451 (19 %)	1.98	1.54, 2.56
Male	577/2373 (24 %)	390/2434 (16 %)	1.71	1.47, 1.98
Age ≥15^b	651/3065 (21 %)	Comparator^b	1.69	1.34, 2.13

Initial model included anaemia (mild, moderate, none), fever at the time of the survey^a (0/1), history of fever (0/1), sex, occupation (0/1), family member (0/1) and age group (<6-month-old, 6-year-old–<15-year-old, and ≥15-year-old)
^aTemperature >37.5 °C
^bCompared against age <6-year-old [113/616 (18 %)]; age 6-year-old–<15-year-old not significant [203/1126 (18 %), p = 0.11]

ISSN: 1475-2875