The methods used for the six province-wide surveys of the nutritional status of children in Red Sea Province during 1986 and 1987 were duplicated in this study. These methods are described in detail in the previous paper (Cole, M. and Cole, R. (1989) The nutritional status of children in Red Sea Province, November 1985 November 1987). Minor changes to this method included the use of large note books to record data in the field rather than the form used in 198687 and the collection of more detailed information on the general condition of each child and his or her parents. Percent less than 80% reference median weight for height by settlement was calculated in the field rather than the office, which had previously been the case. On returning to the office, results were reanalysed by computer, using a spreadsheet and sex-specific reference tables (WHO/NCHS/CDC 1983). The sample was divided into those less than or equal to 75 cm in height and those greater than 75 cm in height as described in the previous paper.