0766 Normalized Scoring System for the Brief Infant Sleep Questionnaire (BISQ)

Abstract Introduction The Brief Infant Sleep Questionnaire (BISQ) is used to assess sleep patterns, parent perception, and sleep-related behaviors in young children (0–36 months). The BISQ has been validated against actigraphy, daily logs, and has high sensitivity in documenting expected developmental trends in sleep. Currently, BISQ scoring is done using clinical interpretation, but scoring has been challenging given that infant sleep is highly variable and age dependent. The objective of this study was to develop a normalized scoring method for the BISQ. Methods 21,926 caregivers (82.4% mothers) of infants and toddlers (3–25 mos, 52.8% male) in the United States completed the expanded BISQ via a publicly-available smartphone application, Johnson’s® Bedtime®. Three subscales were created: Baby Sleep (6 items), Parent Perception (3 items), and Parent Behaviors (10 items). To normalize each item, continuous data tables were generated that coded to a specific score (0 to 1.00) based on infant age and response, with scores averaged across each subscale. Partial least squares modeling with cross-validation was conducted to verify the impact of Baby Sleep items on Parent Perception score. Results Baby Sleep scores followed a normal distribution with a median of 0.64 and an interquartile range of 0.25. Baby Sleep scores were significantly correlated with both Parental Perception scores (R2=0.31, p