title: Trends in reference usage statistics in an academic health sciences library.
abstract: OBJECTIVE
  To examine reference questions asked through traditional means at an academic health sciences library and place this data within the context of larger trends in reference services.
  
  
  METHODS
  Detailed data on the types of reference questions asked were collected during two one-month periods in 2003 and 2004. General statistics documenting broad categories of questions were compiled over a fifteen-year period.
  
  
  RESULTS
  Administrative data show a steady increase in questions from 1990 to 1997/98 (23,848 to 48,037, followed by a decline through 2004/05 to 10,031. The distribution of reference questions asked over the years has changed-including a reduction in mediated searches 2,157 in 1990/91 to 18 in 2004/05, an increase in instruction 1,284 in 1993/94 to 1,897 in 2004/05 and an increase in digital reference interactions 0 in 1999/2000 to 581 in 2004/05. The most commonly asked questions at the current reference desk are about journal holdings 19%, book holdings 12%, and directional issues 12%.
  
  
  CONCLUSIONS
  This study provides a unique snapshot of reference services in the contemporary library, where both online and offline services are commonplace. Changes in questions have impacted the way the library provides services, but traditional reference remains the core of information services in this health sciences library.
authors.affiliation: Library of the Health Sciences (Peoria), University of Illinois at Chicago, P.O. Box 1649, One Illini Drive Peoria, IL 61656, USA. sgroote@uic.edu
authors.forename: Sandra L
authors.initials: SL
authors.lastname: De Groote
authors.forename: Kristin
authors.initials: K
authors.lastname: Hitchcock
authors.forename: Richard
authors.initials: R
authors.lastname: McGowan
mesh_terms: D000046:Academic Medical Centers / Q000458:organization & administration*; D003258:Consumer Behavior / Q000706:statistics & numerical data; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007087:Illinois; D016247:Information Storage and Retrieval / Q000706:statistics & numerical data / Q000639:trends*; D046609:Libraries, Digital / Q000639:trends; D007993:Libraries, Medical / Q000706:statistics & numerical data / Q000639:trends*; D007999:Library Services / Q000706:statistics & numerical data / Q000639:trends*; D009936:Organizational Innovation; D010934:Planning Techniques; D012189:Retrospective Studies