Parent-reported indicators for detecting feeding and swallowing difficulties and undernutrition in preschool-aged children with cerebral palsy

AIM To determine the most accurate parent-reported indicators for detecting (1) feeding/swallowing difficulties and (2) undernutrition in preschool-aged children with cerebral palsy (CP). METHOD This was a longitudinal, population-based study, involving 179 children with CP, aged 18 to 60 months (mean 34.1mo [SD 11.9] at entry, 111 males, 68 females [Gross Motor Function Classification System level I, 84; II, 23; III, 28; IV, 18; V, 26], 423 data points). Feeding/swallowing difficulties were determined by the Dysphagia Disorders Survey and 16 signs suggestive of pharyngeal phase impairment. Undernutrition was indicated by height-weight and skinfold composite z-scores less than -2. Primary parent-reported indicators included mealtime duration, mealtime stress, concern about growth, and respiratory problems. Other indicators were derived from a parent feeding questionnaire, including 'significant difficulty eating and drinking'. Data were analysed using multilevel mixed-effects regression and diagnostic statistics. RESULTS Primary parent-reported indicators associated with feeding/swallowing were 'moderate-severe parent stress' (odds ratio [OR]=3.2 [95% confidence interval {CI} 1.3-7.8]; p<0.01), 'moderate-severe concern regarding growth' (OR=4.5 [95% CI 1.7-11.9]; p<0.01), and 'any respiratory condition' (OR=1.8 [95% CI 1.4-5.8]; p<0.01). The indicator associated with undernutrition was 'moderate-severe concern regarding growth' (height-weight OR=13.5 [95% CI 3.0-61.3]; p<0.01; skinfold OR=19.1 [95% CI 3.7-98.9]; p<0.01). 'Significant difficulty eating and drinking' was most sensitive/specific for feeding outcome (sensitivity=58.6%, specificity=100.0%), and 'parent concern regarding growth' for undernutrition (sensitivity=77.8%, specificity=77.0%). INTERPRETATION Parent-reported indicators are feasible for detecting feeding and swallowing difficulties and undernutrition in children with CP, but need formal validation.