The Study of Women in Gothenburg 1968–1969

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Abstract
Women from five age groups (38, 46, 50, 54, and 60 years), participating in the population study “Women in Gothenburg 1968–1969”, were subjected to a 24‐hour recall dietary interview (n=1361). In a randomized subsample (n=418), a dietary history was obtained and individuals in another randomized subsample (n=755) submitted a 24‐hour urine specimen for nitrogen analyses. There were significant differences between the 24‐hour recall and dietary history figures in all five age groups with respect to energy and all nutrients. The mean protein intake calculated indirectly from the urinary nitrogen excretion came close to the figures calculated from the dietary histories in four out of the five age groups. The energy intake and, consequently, the intake of most nutrients calculated from the dietary histories were higher than generally ascribed to Swedish women, as most previous data have been obtained by 24‐hour dietary recall interviews. Most women (71–89% in the different age groups) consumed too much fat and most women of fertile age (80–92%) consumed too little iron. A significant decrease in the mean energy intake was apparent only in the age group 60, i. e. 1870 kcal versus 1965–2105 in the other groups.