Food Intake Recording Software System, version 4 (FIRSSt4): a self-completed 24-h dietary recall for children.

The Food Intake Recording Software System, version 4 ( firsst 4), is a web-based 24-h dietary recall (24 hdr) self-administered by children based on the Automated Self-Administered 24-h recall (ASA24) (a self-administered 24 hdr for adults). The food choices in firsst 4 are abbreviated to include only those reported by children in US national surveys; and detailed food probe questions are simplified to exclude those that children could not be expected to answer (e.g. questions regarding food preparation and added fats). ASA24 and firsst 4 incorporate 10 000+ food images, with up to eight images per food, to assist in portion size estimation. We review the formative research conducted during the development of firsst 4. When completed, firsst 4 will be hosted and maintained for investigator use on the National Cancer Institute's ASA24 website. [ABSTRACT FROM AUTHOR]