Knowledge, Attitudes and Practices Relevant to Malaria Control in Remote Island Populations of Manus, Papua New Guinea

A community-based cross-sectional survey of 262 participants in four island communities of Manus, Papua New Guinea was conducted using a structured questionnaire to examine possible factors of malaria prevalence, including education experiences, knowledge, attitudes, and preventive behaviors, in relation to antimalarial antibody titers. Bivariate and multivariate analyses revealed that micro-environmental conditions caused inter-community differences in malaria prevalence. Ninety-nine percent of the subject villagers recognized mosquito bites as a cause of malaria transmission, which explains the high possession rate of bednets. There was a significant correlation between malaria education experience at schools and knowledge (<i>p</i> < 0.01) and between knowledge and bednet use (<i>p</i> < 0.05). However, regular bednet users were only 35% of the total, due primarily to feelings of discomfort, heat, and stuffiness inside the bednet. Villagers’ behavior of consulting an aid post orderly (APO) in case of high fever significantly lowered the titer level (<i>p</i> < 0.05), while their bednet use did not. This unexpected result was attributable to inappropriate bednet use and to daily living patterns, including both subsistence and social activities. We conclude that information regarding lifestyles and attitudes toward bednet use as well as malaria education experience at schools are particularly important for practical malaria prevention.

Nutritional adaptation of women in contrasting agricultural environments in Tari, Papua New Guinea

The energy expenditure, food consumption and anthropometry of two groups of Hull women are described. The group occupying the highly productive drained margins of the Haeapugua Swamp at Weinani have significantly higher intakes of energy and protein than those at Heli on the Paijaka Plateau. However, both groups of women expend similar amounts of time and energy in agricultural activities. The differences are explained by the contrasting quality of agricultural land at each place. Production per hectare at Heli is only around half of that at Weinani. It is concluded that the nutritional health of Heli women is compromised. This is probably the cause of the significantly lower mean birthweights of children born to women living on the Paijaka Plateau.