Table 4.
Multivariable analysis for the outcomes of the study
| In-hospital mortality | OR | 95% CI | p-value | 30-day mortality | OR | 95% CI | p-value | 30-day readmission | OR | 95% CI | p-value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Patient category | 0.084 | Patient category | 0.043 | Patient category | 0.159 | ||||||
| No MCC | 1 | No MCC | 1 | No MCC | 1 | ||||||
| Comorbidity | 0.60 | 0.12–3.05 | 0.541 | Comorbidity | 1.34 | 0.29–6.24 | 0.708 | Comorbidity | 0.97 | 0.36–2.63 | 0.951 |
| Multimorbidity | 0.32 | 0.06–1.64 | 0.172 | Multimorbidity | 0.73 | 0.16–3.41 | 0.692 | Multimorbidity | 0.86 | 0.32–2.31 | 0.763 |
| Gender | Gender | Gender | |||||||||
| Male | 1 | Male | 1 | Male | 1 | ||||||
| Female | 0.80 | 0.52–1.24 | 0.315 | Female | 0.82 | 0.59–1.15 | 0.253 | Female | 0.77 | 0.56–1.07 | 0.115 |
| Age group (years) | 0.002 | Age group (years) | < 0.001 | Age group (years) | 0.037 | ||||||
| 18–64 | 1 | 18–64 | 1 | 18–64 | 1 | ||||||
| 65–74 | 2.12 | 0.66–6.83 | 0.207 | 65–74 | 2.25 | 1.02–5.00 | 0.045 | 65–74 | 1.59 | 0.90–2.80 | 0.111 |
| 75–84 | 4.82 | 1.75–13.31 | 0.002 | 75–84 | 3.42 | 1.68–6.97 | 0.001 | 75–84 | 2.01 | 1.20–3.38 | 0.008 |
| ≥ 85 | 6.15 | 2.17–17.42 | 0.001 | ≥ 85 | 6.20 | 3.01–12.78 | < 0.001 | ≥ 85 | 2.17 | 1.24–3.79 | 0.007 |
| Intake ≥ 5 medications | 1.33 | 0.99–1.80 | 0.061 | Intake ≥ 5 medications | 1.23 | 0.99–1.52 | 0.056 | Intake ≥ 5 medications | 1.34 | 1.09–1.64 | 0.005 |
| ICD9 of index disease or cause of admission | 0.517 | ICD9 of index disease or cause of admission | < 0.001 | ICD9 of index disease or cause of admission | < 0.001 | ||||||
| 2 | 1.11 | 0.47–2.62 | 0.810 | 2 | *2.59 | 1.31–5.12 | 0.006 | 2 | *4.23 | 2.16–8.28 | < 0.001 |
| 3 | 1.16 | 0.39–3.50 | 0.786 | 3 | 1.15 | 0.44–2.97 | 0.780 | 3 | 0.49 | 0.19–1.27 | 0.144 |
| 4 | 1 | / | / | 4 | 0.25 | 0.06–1.16 | 0.077 | 4 | 0.63 | 0.26–1.56 | 0.318 |
| 7 | 0.69 | 0.33–1.46 | 0.334 | 7 | 0.85 | 0.45–1.61 | 0.624 | 7 | 0.71 | 0.40–1.27 | 0.252 |
| 8 | 0.92 | 0.42–2.02 | 0.840 | 8 | 1.62 | 0.85–3.08 | 0.143 | 8 | 0.82 | 0.43–1.56 | 0.555 |
| 9 | 0.29 | 0.08–1.08 | 0.066 | 9 | 0.45 | 0.17–1.22 | 0.117 | 9 | 1.08 | 0.55–2.13 | 0.829 |
| 10 | 0.96 | 0.31–2.94 | 0.945 | 10 | 1.36 | 0.55–3.35 | 0.509 | 10 | 0.46 | 0.16–1.35 | 0.158 |
| 17 | 0.83 | 0.27–2.51 | 0.735 | 17 | 1.14 | 0.46–2.79 | 0.781 | 17 | 1.39 | 0.62–3.12 | 0.427 |
CI, confidence interval; ICD9, international classification of diseases 9; MCC, multiple chronic conditions; OR, odds ratio
*Still significant after the Bonferroni correction (p < 0.001). ICD9 chapters nomenclature: 2, Infectious and Parasitic Diseases; 3, Neoplasms; 4, Diseases of the Blood and Blood-Forming Organs;7, Diseases of the Circulatory System; 8, Diseases of the Respiratory System; 9, Diseases of the Digestive System; 10, Diseases of the Genitourinary System; 17, Injury and Poisoning