Table 2

Univariate analyses of individual patient factors in relation to ultimate hospital mortality

Deaths
 na
 %
 OR (95% CI)
Age (years)



     0–19
 7
 230
 3.0
 1.68 (1.54–1.85) per 10 year increase
     20–29
 10
 336
 3.0
     30–39
 7
 348
 2.0
     40–49
 28
 338
 8.3
     50–59
 35
 328
 10.7
     60+
 112
 461
 24.3
Sex



     Female
 142
 1365
 10.4
 1.00
     Male
 57
 676
 8.4
 0.79 (0.57–1.09)
Steroid treatment in previous 6 months



     No
 175
 1755
 10.0
 1.00
     Yes
 24
 286
 8.4
 0.83 (0.53–1.29)
CPR within 24 hours before admission



     No
 123
 1861
 6.6
 1.00
     Yes
 73
 165
 44.2
 11.21 (7.84–16.03)
Neurological insult in first 24 hours



     No
 122
 1829
 6.7
 1.00
     Yes
 77
 212
 36.3
 7.98 (5.09–10.95)
Highest heart rate (beats/min)



     <124
 57
 661
 8.6
 1.08 (1.01–1.15) per 10 beats/min increase
     124–141
 63
 700
 9.0
     ≥141
 73
 641
 11.4
Highest respiratory rate (breaths/min)



     <26
 17
 492
 3.5
 1.01 (0.89–1.15) per 5 breaths/min increase
     26–33
 15
 462
 3.2
     ≥33
 22
 471
 4.6
Lowest Pao2 (kPa)



     <9.8
 81
 585
 13.9
 0.89 (0.76–1.05) per 5 kPa increase
     9.8–12.4
 57
 618
 9.2
     ≥12.4
 52
 614
 8.5
pH from ABG with lowest Pao2



     <7.32
 99
 556
 17.8
 1.62 (1.37–1.91) per pH 0.1 increase
     7.32–7.41
 51
 656
 7.8
     ≥7.41
 40
 603
 6.6
Paco2 from ABG with lowest pH (kPa)



     <5.7
 22
 573
 3.8
 1.62 (1.37–1.91) per 5 kPa increase
     5.7–8.2
 62
 567
 10.9
     ≥8.2
 97
 586
 16.5
Acute Physiology Score



     0–8
 19
 65
 2.9
 1.18 (1.15–1.21) per 1 point increase
     9–12
 48
 590
 8.1
     13+
 114
 567
 20.1
APACHE II score



     0–10
 10
 594
 1.7
 1.18 (1.15–1.21) per 1 point increase
     11–15
 38
 593
 6.4
     16+
 133
 621
 21.4

aExcluding admissions who were readmissions to intensive care unit (ICU) within the same hospital stay, admissions whose ultimate hospital discharge status was missing, and admissions missing the specific factor. APACHE, Acute Physiology and Chronic Health Evaluation; CI, confidence interval; CPR, cardiopulmonary resuscitation; OR, odds ratio; Paco2, arterial carbon dioxide tension; Pao2, arterial oxygen tension.

Gupta et al. Critical Care 2004 9(Suppl 3):S14   doi:10.1186/cc3746