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. 2025 Jul 1;15:20486. doi: 10.1038/s41598-025-05343-z

Table 5.

Analysis of the associations between ICU mortality and social and clinical variables in adult patients admitted to the intensive care unit between 2021 and 2022.

Variables ICU Survivors ICU Nonsurvivors
N(%) Mean ± SD N(%) Mean ± SD P value OR-95%
Gender 0,636
Male 66(29,9) 16(33,3)
Female 155(70,1) 32(66,7)
Age (years) 93,13 ± 2,83 93,04 ± 3,31 0,534
Frail patient? 0,116
No 163(73,8) 30(62,5)
Yes 58(26,2) 18(37,5)
Charlson Comorbidity Index (CCI) 2,79 ± 2,27 3,88 ± 2,89 0,658
Pre-Hospital Admission Functional Status 0,084
Independent 43(19,6) 3(6,3)
Requires assistance 104(47,5) 27(56,3)
Restricted 72(32,9) 18(37,5)
Source of ICU Admission 0,483
Surgical Center 18(8,1) 2(4,2)
Emergency Department 187(84,6) 41(85,4)
Hospital Ward 8(3,6) 4(8,3)
Home-care 5(2,3) 1(2,1)
Hemodynamics Room 3(1,4) 0(0,0)
ICU Admission Type 0,402
Elective Surgery 11(5,0) 1(2,1)
Urgent/Emergency Surgery 12(5,4) 1(2,1)
Medical 198(89,6) 46(95,8)
SAPS 3 score 56,38 ± 11,39 65,69 ± 11,41 0,780
Mechanical Ventilation D1 < 0,001
No 185(85,3) 12(25,0) b
Yes 32(14,7) 36(75,0) 17,344(8,165 − 36,842)
Cardiac Arrest 1 h 0,095
No 215(99,1) 46(95,8)
Yes 2(0,9) 2(4,2)
Dialysis Use < 0,001
No 213(97,3) 35(72,9) b
Yes 6(2,7) 13(27,1) 13,186(4,701 − 36,981)
Treatment Limitation 0,267
No 212(96,8) 42(93,3)
Yes 7(3,2) 3(6,7)

¹Chi-square test, with Yates correction, at a 95% confidence level. ²Mann‒Whitney U test, at a 95% confidence level.³Logistic Regression, using odds ratio, at a 95% confidence level.