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Table 7 Multivariate analysis of trends and factors associated with in-hospital deaths after primary THA

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

   IN-HOSPITAL DEATHS AFTER HOSPITALIZATIONS FOR THA
   Odds Ratios (95% Confidence Intervals
   Men Women Both
Age 40-54 - - -
  55-64 2.16 (1.13-4.14) 0.76 (0.37-1.59) 1.49 (0.92-2.41)
  65-74 4.29 (2.39-7.71) 1.61 (0.88-2.93) 3.10 (2.03-4.71)
  75-84 11.81 (6.70-20.82) 2.95 (1.65-5.29) 6.81 (4.52-10.25)
  ≥85 28.25 (15.67-50.91) 10.45 (5.81-18.80) 20.83 (13.74-31.58)
Sex Women NA NA -
  Men NA NA 1.72 (1.50-2.01)
Reason for surgery OA - - -
  Other 6,67 (5,26-8,33) 5,56 (4,35-6,67) 5,88 (5,00-7,14)
Charlson comorbidity index 0 - - -
  1-2 4.40 (3.54-5.47) 4.38 (3.66-5.24) 4.39 (3.82-5.04)
  >2 18.20 (12.93-25.63) 17.78 (12.78-24.73) 18.08 (14.28-22.89)
YEAR 2001 - - -
  2002 0.97 (0.67-1.40) 1.30 (0.91-1.86) 1.13 (0.88-1.46)
  2003 0.81 (0.56-1.17) 0.99 (0.69-1.45) 0.91 (0.70-1.18)
  2004 0.57 (0.38-0.86) 1.56 (1.11-2.20) 1.04 (0.81-1.34)
  2005 0.53 (0.36-0.80) 1.13 (0.79-1.62) 0.82 (0.63-1.07)
  2006 0.57 (0.39-0.84) 1.07 (0.75-1.54) 0.81 (0.62-1.05)
  2007 0.59 (0.41-0.86) 1.20 (0.85-1.70) 0.88 (0.68-1.13)
  2008 0.54 (0.37-0.79) 1.04 (0.73-1.48) 0.78 (0.60-1.00)
  1. Calculate using logistic regression. Dependent variable "In hospital death after hospitalizations for THA"
  2. The independent variables included in the models are those shown in the table. OA Osteoarthritis