“…These rates are incomparable because anticipated mortality may vary widely from centre to centre depending upon the severity of the malnutrition, associated de®ciencies, endemic or epidemic infection, admission policy, treatment regimen and the quality of care. The prognosis of severely malnourished children depends on anthropometric status (Gomez et al, 1956;Dramaix et al, 1993;Kahn, 1959), the presence of oedema (Dramaix et al, 1993) micro-nutrient de®ciencies (McLaren et al, 1969;Golden & Ramdath, 1987), electrolyte imbalance (Gomez et al, 1956;Kahn, 1959), hepatic dysfunction (McLaren et al, 1969;McLean, 1962) or associated infections (Gomez et al, 1956;Laditan, 1976) as well as the treatment protocol used (Wharton et al, 1967). Although reduction in mortality depends upon identi®cation of the reasons for observed differences between centres and regimens, they are usually ascribed to inherent features of the malnutrition; this impedes the evaluation of a centre's ef®cacy and attempts to reduce mortality.…”