Specificity of Early Childhood Hyperphagia Profiles in Neurogenetic Conditions.

The team gave the Hyperphagia Questionnaire to kids aged 4-8. All kids had a neurogenetic syndrome: Prader-Willi, Angelman, or Williams. A same-age group without a syndrome served as controls.

The study wanted to see which syndrome showed the strongest hunger and food-seeking profile.

Every syndrome group scored higher than controls on hunger traits. Prader-Willi syndrome topped them all, especially on the Severity scale.

Still, the early scores alone could not cleanly split Prader-Willi from the other two syndromes.

Nijs et al. (2016) also compared Williams and Down syndromes, but looked at everyday problem solving instead of hunger. Both papers used a quasi-experimental design and found syndrome-specific profiles.

Shabnam et al. (2023) validated a different tool, the Feeding Handicap Index, in kids with varied developmental disabilities. Their focus was the social stress of feeding problems, not the hunger drive itself.

Rutter et al. (1987) took a biochemical route, showing that hair minerals could separate Prader-Willi from controls with about 90 % accuracy. Together, these studies suggest you can track Prader-Willi either by behavior (hyperphagia scores) or by body chemistry (minerals), depending on your clinic’s needs.

If you assess young kids with neurogenetic disorders, add the Hyperphagia Questionnaire to your intake packet. A high Severity score flags Prader-Willi risk, but keep watching Angelman and Williams cases too—their early hunger scores can overlap. Pair the HQ with tools like the FHI-C to see both hunger drive and family stress, then plan food management and parent training from day one.