Number of Individuals Represented in Total Admissions.

aUnpublished estimates given in personal communication, 19 August 2009, Allen Beck.
bSee Reference [1].
cNumerator: R. Eskind, personal communication, August 19, 2009, Philadelphia Prison Service, 2003–admissions, with range of admissions 32,573 by admission and discharge sheets, 32,614 by current data management system. Denominator of 24,290: J. Draine, July, 2009. Mental illness and Substance Abuse in Explaining Urban Jail Admission and Length of Stay. 31st Congress of the International Academy of Law and Mental Health. New York, NY.
dW. Franklin, personal communication, August 18, 2009. Data are from Population Research Unit, New York City Department of Correction. There were 105, 978 admissions in 2006, attributable to 72,457 individuals. There are 1,745 “known unknown” persons, namely intakes whose identity was not able, for whatever reason, to be linked to a NYSID or New York State fingerprint-based identification. Based on 72,457 known individuals, there may be up to 1,745 additional individuals represented.
eR. Chakraborty, personal communication, September 29, 2009., DC Department of Corrections. The ratio of Intake Transactions to Distinct Intakes was 1.43 in FY2007 and 1.42 in FY2008, according to FY 2007 and FY 2008 aggregate data, provided upon request. In FY 2007, there were 18,436 Intake Transactions and 12,910 Distinct Intakes.
fM. Malek and G. Cox, Los Angeles County Sheriff Department, personal communication, August 18, 2009. In 2008 the Los Angeles County Jail incarcerated 142,918 unique persons, who comprised 179,868 total bookings.