Predictors of ICU Mortality among Mechanically Ventilated Patients: An Inception Cohort Study from a Tertiary Care Center in Addis Ababa, Ethiopia

Table 1

Baseline characteristics of mechanically ventilated patients admitted to the adult intensive care unit of Tikur Anbessa Hospital, Addis Ababa, Ethiopia from September 2019 to September 2020, displayed against their ICU outcome using the chi-square (X²), t-test, and Mann–Whitney U test.

Variables		Total (n = 160)	Survivors (n = 63)	Nonsurvivors (n = 97)	value
Sex	Male; Female	75 (46.9); 85 (53.1)	28 (44.4); 35 (56.6)	47 (48.5); 50 (51.5)	0.66
Age years	(Mean ± SD)	38.9 ± 16.2	36.4 ± 14.4 yrs	40.5 ± 17.2 yrs	0.123
Source of admission	OR; Emergency; Wards	70 (43.8); 38 (23.8); 48 (30.0)	39 (61.9); 9 (14.3); 13 (20.6)	31 (32.0); 29 (29.9); 35 (36.1)	<0.01
Hospital stay before admission, days	Median (IQR)	6 (2–14)	10 (5–15)	4 (1–12)	0.01
Place of admission	MICU; SICU	66 (41.3); 94 (58.7)	10 (18.9); 53 (81.1)	56 (57.7); 41 (42.3)	<0.01
MPM II score	(Mean ± SD)	39.6 ± 25.5	21.9 ± 14.6	46.5 ± 26.4	<0.01
ICU priority level	Level 1; Level 2; Level 3; Level 4	77 (48.1); 5 (3.1); 47 (29.4); 31 (19.4)	52 (82.5); 2 (3.2); 8 (12.7); 1 (1.6)	25 (25.8); 3 (3.1); 39 (40.7; 30 (30.9)	<0.01
GCS at ICU admission	<8/7T; >8/8T/Sedated	35 (21.9); 125 (78.1)	3 (4.8); 60 (95.2)	32 (33.0); 65 (77.0)	<0.01
Indication	Operative; Non-operative	68 (42.5); 92 (57.5)	41 (65.1); 22 (34.9)	27 (29.0); 70 (71.0)	<0.01
Admission diagnosis	Neurologic; Respiratory; Cardiovascular; Hematologic; Renal; Gastrointestinal	85 (53.1); 97 (60.6); 57 (35.6); 45 (28.1); 41 (25.6); 25 (15.6)	45 (71.4); 25 (39.7); 7 (11.1); 8 (12.7); 8 (12.7); 6 (9.5)	40 (41.2); 72 (74.2); 50 (51.5); 37 (38.1); 33 (34.0); 19 (19.6)	<0.01
Initial mode of ventilation	AC/VC; SIMV/VC; AC/PC; Others	87 (56.5); 41 (26.6); 15 (9.7); 11 (7.1)	23 (37.7); 26 (42.6); 4 (6.6); 8 (13.1)	64 (66.0); 15 (15.5); 11 (11.8); 3 (3.3)	<0.01
Serum albumin, g/dl	(Mean ± SD)	2.5 ± 0.8	3.0 ± 1	2.3 ± 0.6	<0.01
Comorbidity	Immunosuppression; Hypertension; Retroviral infection; Congestive heart failure; Diabetes	90 (56.3); 32 (20.1); 10 (6.3); 14 (8.8); 10 (6.3)	51 (52.6); 11 (17.5); 2 (3.2); 3 (4.8); 2 (3.2)	39 (61.9); 21 (21.9); 8 (8.2); 11 (11.3); 8 (8.2)	0.59

Process and outcome of care.