Table 1 Demographic and clinical characteristics of the cohort.

From: A retrospective cohort study comparing differences in 30-day mortality among critically ill patients aged ≥ 70 years treated in European tax-based healthcare systems (THS) versus social health insurance systems

 

THS

SHI

p-Value

(n = 1520)

(n = 886)

 

Sex

Male—n (%)

1094 (72%)

615 (69%)

0.19

Female—n (%)

426 (28%)

271 (31%)

Age—years

Mean (SD)

76 (5)

75 (4)

0.08

Age categories

Age 70–79 years

1,217 (80%)

747 (84%)

0.03

Age 80–89 years

291 (19%)

136 (15%)

Age ≥ 90 years

10 (1%)

3 (< 1%)

BMI—kg/m2

Mean (SD)

28 (5)

28 (5)

0.16

SOFA score—points

Mean (SD)

6 (3)

5 (3)

0.002

SOFA > 5 pts.—n (%)

670 (44%)

349 (39%)

0.02

Clinical frailty scale—points

Mean (SD)

3 (2)

3 (1)

0.35

CFS > 4 pts. n (%)

254 (17%)

124 (14%)

0.09

Length of stay—days

Median (IQR)

11 (6–22)

13 (6–23)

0.11

Concomitant diseases

Diabetes mellitus—n (%)

514 (34%)

278 (31%)

0.24

Ischemic heart disease—n (%)

362 (24%)

163 (18%)

0.005

Chronic kidney disease—n (%)

246 (16%)

139 (16%)

0.48

Arterial hypertension—n (%)

998 (66%)

579 (65%)

0.74

Chronic pulmonary disease—n (%)

347 (23%)

191 (22%)

0.69

Chronic heart failure—n (%)

230 (15%)

109 ()

0.16

  1. IQR interquartile range, SD standard deviation, SHI social health insurance system, SOFA sequential organ failure assessment, THS tax-based health system.