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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Psychiatr Serv. 2016 Jul 15;67(12):1307–1314. doi: 10.1176/appi.ps.201500224

Table 3.

Median and Interquartile Range for Number of Antipsychotic Ingredients Prescribed for Young Children (0–9 Years) and Adults (20–64 Years) across Physicians who Prescribed to Both Groups, 2009–2011

Median Interquartile Range

All Prescribers:
 Young Children 2 1–4
 Adults 7 6–8

Child/Adolescent Psychiatrists:
 Young Children 3 2–4
 Adults 6 4–7

Family Medicine Physicians:
 Young Children 1 1-1
 Adults 5 4–6

Other Psychiatrists:
 Young Children 2 1–3
 Adults 7 6–8

First Quartile of Total Antipsychotic Volume
 Young Children 2 1–3
 Adults 5 4–7

Second Quartile of Total Antipsychotic Volume
 Young Children 2 1–3
 Adults 6 5–7

Third Quartile of Total Antipsychotic Volume
 Young Children 3 1–4
 Adults 7 6–8

Fourth Quartile of Total Antipsychotic Volume
 Young Children 3 1–4
 Adults 8 7–9

Source: Xponent™ database, 1/08 – 12/11, IMS Health Incorporated. All Rights Reserved.

Notes: Analyses use IMS Health's Xponent™ linked with American Medical Association Masterfile data. Note: All FGAs are viewed as being a single ingredient due to the very low share of first-generation antipsychotics used among children 0–9.