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. 2025 Aug 29;13:e19885. doi: 10.7717/peerj.19885

Table 2. Regression analysis of predictors for 90 days survival of ICU admitted lung cancer patients.

Variables Univariate analysis Multivariate analysis
HR (95% CI) P value HR (95% CI) P value
Demographics
Age (years) 0.98 (0.96, 1.00) 0.014 0.96 (0.94, 0.98) <0.001
Gender, n (%)
Female Ref. Ref.
Male 1.18 (0.78, 1.77) 0.429 0.72 (0.47, 1.12) 0.146
BMI (kg/m2) 0.90 (0.85, 0.95) <0.001 0.92 (0.87, 0.97) 0.002
Treatment history
Target therapy 2.34 (1.59, 3.44) <0.001
Immunotherapy 2.13 (1.38, 3.30) <0.001
Chemotherapy 1.64 (1.14, 2.37) 0.008 0.57 (0.37, 0.87) 0.009
Radiotherapy 2.15 (1.23, 3.76) 0.007
Transferring source
Operation room Ref. Ref.
Emergency department 28.38 (8.00, 100.70) <0.001 9.78 (2.22, 43.14) 0.003
Clinical ward 19.53 (6.19, 61.62) <0.001 6.41 (1.61, 25.62) 0.009
Other hospitals 14.32 (3.20, 64.03) <0.001 2.05 (0.36, 11.81) 0.423
Planned transfer 0.08 (0.03, 0.19) <0.001
Elective or emergency surgery
No surgery Ref. Ref.
Elective 0.14 (0.08, 0.25) <0.001 0.38 (0.20, 0.69) 0.002
Emergency 1.22 (0.39, 3.84) 0.738 2.28 (0.57, 9.12) 0.242
Severity scores
SOFA 1.19 (1.14, 1.24) <0.001 1.05 (1.00, 1.12) 0.064
APACHE II 1.07 (1.05, 1.09) <0.001
ICU diagnosis
Sepsis 10.16 (4.47, 23.11) <0.001 2.61 (1.02, 6.67) 0.045
ARDS 2.85 (1.96, 4.15) <0.001
Respiratory failure 4.98 (3.24, 7.66) <0.001 2.16 (1.29, 3.62) 0.003
AKI
None Ref.
Grade I 2.03 (0.94, 4.39) 0.070 1.12 (0.50, 2.49) 0.779
Grade II 3.82 (1.92, 7.61) <0.001 2.83 (1.32, 6.06) 0.008
Grade III 4.93 (2.63, 9.26) <0.001 2.5 (1.23, 5.10) 0.012
Anti-infection treatment
Carbapenems 3.09 (2.16, 4.42) <0.001 1.46 (0.97, 2.20) 0.073
β-lactam 1.62 (1.13, 2.32) 0.009
Glycopeptides 2.22 (1.45, 3.40) <0.001
Tigecycline 2.38 (1.21, 4.71) 0.012
Echinocandins 1.96 (1.12, 3.43) 0.018
Triazoles 2.65 (1.80, 3.91) <0.001
Other treatment
Mechanical ventilation 3.90 (2.64, 5.76) <0.001
Conventional oxygen therapy 0.15 (0.10, 0.21) <0.001 0.31 (0.20, 0.49) <0.001
Sedation treatment 3.96 (2.75, 5.69) <0.001

Notes.

Cox regression tests were applied to analyze the correlated factors of 90 days death outcomes. Factors with significant correlation identified in univariate analysis, along with age and gender, were then incorporated in backward stepwise multivariate regression analysis to identify independent associated variables.

TITLE

BMI
Body Mass Index
SOFA
Sequential Organ Failure Assessment
APACHE
II Acute Physiology And Chronic Health Evaluation II
ARDS
Acute Respiratory Distress Syndrome
AKI
Acute Kidney Injury