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Table 3 Length of stay (LOHS) for primary THA hospitalizations in Spain from 2001 to 2008

From: Trends in primary total hip arthroplasty in Spain from 2001 to 2008: Evaluating changes in demographics, comorbidity, incidence rates, length of stay, costs and mortality

   2001 2002 2003 2004 2005 2006 2007 2008 P*
Age group   LOHS LOHS LOHS LOHS LOHS LOHS LOHS LOHS  
40-54* Mean 11.93 11.15 10.84 10.00 9.70 9.69 8.99 9.06 <0.001
  Median 10 9 9 8 8 8 8 8  
  IQR 8-13 7-12 7-12 7-11 7-10 6-10 6-9 6-9  
50-64* Mean 12.02 11.52 11.29 10.53 10.39 10.10 9.61 9.27 <0.001
  Median 11 10 9 9 8 8 8 8  
  IQR 8-14 8-13 8-13 7-12 7-11 7-11 6-10 6-10  
65-74* Mean 12.76 12.36 11.75 11.32 10.95 10.67 10.34 10.03 <0.001
  Median 11 11 10 9 9 9 9 8  
  IQR 9-14 8-14 8-13 8-13 7-12 7-12 7-11 7-11  
75-84 Mean 14.15 13.68 13.31 12.80 12.50 12.31 12.04 11.46 <0.001
  Median 12 12 11 11 10 10 9 9  
  IQR 9-16 9-15 8-15 8-15 8-14 8-14 8-13 7-13  
≥ 85 Mean 16.20 17.45 16.67 16.27 15.99 15.11 15.37 14.97 0.001
  Median 13 14 13 12 13 12 12 11  
  IQR 10-18 10-20 10-20 9-18 9-19 9-18 8-18 8-17  
Total Mean 13.00 12.61 12.18 11.65 11.36 11.13 10.78 10.45 <0.001
  Median 11 11 10 10 9 9 9 8  
  IQR 9-15 8-14 8-14 8-13 7-13 7-12 7-12 7-11  
  1. IQR Inter quartile range
  2. * P value for comparing means along the study period