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Table 1 Univariate analysis of MR+ and MR- groups

From: What is the most cost‐effective strategy for nasal screening and Staphylococcus aureus decolonization in patients undergoing total hip arthroplasty?

        95% Confidence interval
Parameter   n MR+ (n=29) MR- (n=1625) P-value Odds ratio Lower Upper
Sex Female 1464 25 (1.7%) 1439 (98.3%) 0.567 0.808 0.275 3.229
  Male 190 4 (2.1%) 186 (97.9%)     
Age (years) ≥80 70 2 (2.9%) 68 (97.1%) 0.350 1.695 0.192 6.987
  <80 1584 27 (1.7%) 1557 (98.3%)     
BMI (kg/m2) ≥30 93 3 (3.2%) 90 (96.8%) 0.221 1.967 0.374 6.605
  <30 1561 26 (1.7%) 1535 (98.3%)     
Antibiotic use within 3 years  + 337 8 (2.4%) 329 (97.6%) 0.351 1.500 0.569 3.565
   - 1317 21 (1.6%) 1296 (98.4%)     
Corticosteroid use  + 36 2 (5.6%) 34 (94.4%) 0.130 3.461 0.384 14.752
   - 1618 27 (1.7%) 1591 (98.3%)     
Albumin (g/dL) <3.5 18 1 (5.6 %) 17 (94.4 %) 0.274 3.374 0.078 23.091
  ≥3.5 1636 28 (1.7 %) 1608 (98.3 %)     
GFR (mL/min) <50 108 3 (2.8%) 105 (97.2%) 0.432 1.670 0.318 5.586
  ≥50 1546 26 (1.7%) 1520 (98.3%)     
Brain disease  + 54 0 (0.0%) 54 (100.0%) 1.000 0.000 0.000 4.078
   - 1600 29 (1.8%) 1571 (98.2%)     
Thyroid disease  + 29 1 (3.4%) 28 (96.6%) 0.404 2.036 0.048 13.262
   - 1625 28 (1.7%) 1597 (98.3%)     
Cardiac disease  + 21 0 (0.0%) 21 (100.0%) 1.000 0.000 0.000 11.254
   - 1633 29 (1.8%) 1604 (98.2%)     
Pulmonary disease  + 20 0 (0.0%) 20 (100.0%) 1.000 0.000 0.000 11.873
   - 1634 29 (1.8%) 1605 (98.2%)     
Diabetes  + 109 1 (0.9%) 108 (99.1%) 1.000 0.502 0.012 3.097
   - 1545 28 (1.8%) 1517 (98.2%)     
Asthma  + 55 2 (3.6%) 53 (96.4%) 0.251 2.196 0.247 9.130
   - 1599 27 (1.7%) 1572 (98.3%)     
Smoking  + 76 1 (1.3%) 75 (98.7%) 1.000 0.738 0.018 4.594
   - 1578 28 (1.8%) 1550 (98.2%)     
Revision surgery  + 155 2 (1.3%) 153 (98.7%) 1.000 0.713 0.081 2.883
   - 1499 27 (1.8%) 1472 (98.2%)     
  1. BMI Body mass index, GFR Glomerular filtration rate. * P<0.05Values are shown as the number of patients (%). Fisher's exact test