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Table 1 Characteristics of study responders and non-responders,* N = 1,500

From: Measuring patient perceptions about osteoporosis pharmacotherapy

  Participant Refused Unable to reach Ineligible
  (N = 871) (N = 171) (N = 174) (N = 284)
  n (%) n (%) n (%) n (%)
Physician-diagnosed osteoporosis 94 (13.1) 16 (11.3) 24 (17.0) 36 (15.0)
Fracture since age 40§ 122 (14.6) 16 (9.8) 11 (6.9) 36 (13.4)
Etidronate use (ever) 12 (1.6) 1 (0.7) 2 (1.5) 8 (3.5)
Hormone therapy         
   never 552 (68.9) 113 (73.4) 108 (72.5) 187 (73.6)
   now 113 (14.1) 25 (16.2) 16 (10.7) 36 (14.2)
   past 136 (17.0) 16 (10.4) 25 (16.8) 31 (12.2)
  1. * Based on self-reported data collected between 1995 and 1997 [20].
  2. Includes 150 for whom we were unable to locate [8], and 14 that we were unable to contact by the end of study recruitment in 2004.
  3. Proportions adjusted for missing data.
  4. § Wrist, arm, hip, rib, pelvis, or vertebrae; proportions statistically similar except for differences between those "unable to reach," compared to participants or ineligible subjects.