Résumé :
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[BDSP. Notice produite par INIST-CNRS R0xhf3rS. Diffusion soumise à autorisation]. Background : Spot checks are becoming a popular method to assess hygiene behaviours ; however, little is known about their repeatability or predictability. We evaluated the within-household repeatability of hygiene indices created from spot checks and their ability to predict incidence of diarrhoea in young Guatemalan children. Methods : We observed hygiene behaviours in 588 households in four rural Guatemalan communities over 36 months. Four indices related to drinking water (DWI ; score=0-3), food (FI ; score=0-3), personal hygiene (PHI ; score=0-3), and domestic household hygiene (DHI ; score=0-6) and one summary hygiene index (SHI ; range 0-15) were created. Morbidity of 694 children aged birth to 36 months living in the study households was assessed using biweekly recall. Intraclass correlation coefficients were calculated to assess within-household repeatability ; the generalized estimating equations approach was employed to analyse diarrhoea morbidity. Results : Households were observed a mean of 22.1+/-11.2 times. All indices decreased with duration of follow-up (SHI=-0.67+/-0.05 points/year ; WI=-0.04+/-0.01 ; FI=-0.07+/-0.01 ; PHI=-0.21+/-0.01 ; DHI=-0.37+/-0.02 ; all P
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