Kao-Ping Chua
kaopingchua.bsky.social
Kao-Ping Chua
@kaopingchua.bsky.social
Primary care pediatrician and health policy researcher at the University of Michigan studying the opioid epidemic, out-of-pocket spending, low-value care, child health. Director, CHEAR Center (chear.org). MD (Wash U), PhD (Harvard). Go Lions and Go Blue
New pub in Pediatrics: child/teen vaccination declined from 2017-2023 in Michigan. HPV vaccination increased less than expected. Declines were more pronounced in low-income and high-uninsurance counties. @um-ihpi.bsky.social @umchear.bsky.social

Link:
publications.aap.org/pediatrics/a...
August 11, 2025 at 7:22 PM
New study in Pediatrics: using national data, we show that the Adderall shortage caused some children using this drug to switch to other stimulants. Other children stopped using stimulants altogether, especially Medicaid patients. @um-ihpi.bsky.social

publications.aap.org/pediatrics/a...
May 21, 2025 at 5:10 PM
New pub: using national data, we show that disruptions in chronic medication therapy were more common among Medicaid-insured kids and young adults living in states experiencing large Medicaid enrollment losses during Medicaid unwinding. @um-ihpi.bsky.social

publications.aap.org/pediatrics/a...
May 2, 2025 at 8:35 PM
New pub in JAMA: withdrawal of brand-name Flovent, an inhaled steroid used to prevent asthma attacks, led many families of children using Flovent to stop filling inhaled steroid prescriptions altogether. @um-ihpi.bsky.social
jamanetwork.com/journals/jam...
April 27, 2025 at 5:57 PM
1/ New pub: people initiating stimulants via telehealth are more likely to develop a substance use disorder (SUD). They are also more likely to have mental health conditions (SUD risk factors). When controlling for these conditions, the association goes away. www.healthaffairs.org/doi/full/10....
March 6, 2025 at 7:49 PM
5/ The FDA announced a shortage of immediate-release mixed amphetamine salts (Adderall IR) in October 2022 (right vertical line). This announcement was not associated with a significant immediate change in the rate of dispensing of *any stimulant* to children.
January 27, 2025 at 7:42 PM
4/ This is consistent with our study showing that antidepressant dispensing to male adolescents dropped abruptly in March 2020 but did not recover. Our findings raise concerns that undertreatment of mental health conditions in this group has increased.
publications.aap.org/pediatrics/a...
January 27, 2025 at 7:42 PM
3/ While the stimulant dispensing rate recovered after March 2020 in most child subgroups, it remained persistently below the pre-pandemic baseline in male adolescents aged 12-17 years (blue line in graph below).
January 27, 2025 at 7:42 PM
2/ We analyzed 2017-2023 data from a national all-payer prescription dispensing database. After March 2020 (left vertical line in the graph), the monthly stimulant dispensing rate decreased abruptly among all children.
January 27, 2025 at 7:42 PM
1/ New pub in Pediatrics: the stimulant dispensing rate to U.S. children declined after the pandemic began. The Adderall shortage didn’t change this rate but likely caused children using Adderall to switch to other stimulants.

publications.aap.org/pediatrics/a...
January 27, 2025 at 7:42 PM