The December Effect in Pediatric Elective Surgery Utilization: Differences Between Privately and Publicly Insured Children.

OBJECTIVES: The objective of this study was to identify differences in December elective surgery utilization between privately and publicly insured children, given that increases in the prevalence and size of annual deductibles may be driving more families with commercial health insurance to delay elective pediatric surgical procedures until later in the calendar year. STUDY DESIGN: We identified patients aged <18 years who underwent myringotomy, tonsillectomy ± adenoidectomy, tympanoplasty, hydrocelectomy, orchidopexy, distal hypospadias repair, or repair of inguinal, umbilical, or epigastric hernia using the 2012-2019 state inpatient and ambulatory surgery and services databases of 9 states. Log-binomial regression models were used to compare relative probabilities of procedures being performed each month. Linear regression models were used to evaluate temporal trends in the proportions of procedures performed in December. RESULTS: Our study cohort (n = 1 001 728) consisted of 56.7% privately insured and 41.8% publicly insured children. Peak procedure utilization among privately and publicly insured children was in December (10.1%) and June (9.6%), respectively. Privately insured children were 24% (95% CI 22%-26%) more likely to undergo surgery in December (P < .001), with a significant increase seen for 8 of 9 procedures. There was no trend over time in the percentage of procedures performed in December, except for hydrocelectomies, which increased by 0.4 percentage points/year among privately insured children (P = .02). CONCLUSIONS: Privately insured children are >20% more likely than publicly insured children to undergo elective surgery in December. However, despite increases in the prevalence of high deductibles, the proportion of procedures performed in December has not increased over recent years.