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Table 7 Various risk profiles for outcomes in OHS day surgery

From: Root causes of extended length of stay and unplanned readmissions after orthopedic surgery and hand surgery: a retrospective observational cohort study

Combination Total N n of patients OR (95% CI) P-value PPV NPV Specificity Sensitivity
Female & Fentanyl ≥0.16 mg i.v. 539 16 6.97 (2.29–21.29) < 0.001 31.3% 93.9% 97.8% 13.5%
Female & Remifentanil 542 18 4.25 (1.33–13.64) 0.015 22.2% 93.7% 97.2% 10.8%
Fentanyl ≥0.16 mg i.v. & Remifentanil 539 26 5.93 (2.31–15.21) < 0.001 26.9% 94.2% 96.2% 18.9%
Female & Fentanyl ≥0.16 mg i.v. & Remifentanil 539 8 15.09 (3.61–63.06) < 0.001 50.0% 93.8% 99.2% 10.8%
Fentanyl ≥0.16 mg i.v. & General anesthesia 539 30 4.86 (1.93–12.23) < 0.001 23.3% 94.1% 95.4% 18.9%
Fentanyl ≥0.16 mg i.v. & Plexus block 538 18 5.87 (1.97–17.47) 0.001 27.8% 93.8% 97.4% 13.5%
Fentanyl ≥0.16 mg i.v. & Remifentanil & General anesthesia 539 26 5.93 (2.31–15.21) < 0.001 26.9% 94.2% 96.2% 18.9%
Female & Fentanyl ≥0.16 mg i.v. & General anesthesia 539 10 10.02 (2.70–37.26) < 0.001 40.0% 93.8% 98.8% 10.8%
Female & Fentanyl ≥0.16 mg i.v. & Plexus block 538 6 14.65 (2.85–75.33) 0.001 50.0% 93.6% 99.4% 8.1%
Female & Antiemetic medication 540 13 6.65 (1.95–22.75) 0.003 30.8% 93.7% 98.2% 10.8%
Fentanyl ≥0.16 & Antiemetic medication 539 14 2.33 (0.50–10.84) 0.280 14.3% 93.3% 97.6% 5.4%
  1. OR Odds ratio, CI Confidence interval, PPV Positive predictive value, NPV Negative predictive value, i.v. intravenous