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Table 1 Patients and controls during the study.

From: Patient relevant outcome 7 years after total hip replacement for OA - a prospective study

Follow-up time baseline 4 years 5 years 7 years  
Patients 219 198 170 151  
Dead   8 13   21
Missing*   13 15 19 47
Controls 117 83 77 65  
Dead   8   3 11
Missing*   26 6 9 41
  1. *Missing due to dementia, unknown address or declined to participate.