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Table 1 Patient characteristics and outcomes based on subtypes at ICU discharge

From: Identifying clinical subtypes in sepsis-survivors with different one-year outcomes: a secondary latent class analysis of the FROG-ICU cohort

 

All patients (N = 467)

Subtype A (N = 244)

Subtype B (N = 223)

p value

Age, years

64 (53–75)

60 (49–70)

69 (58–78)

 < 0.001

Male gender

293 (62.7%)

141 (57.7%)

152 (68.1%)

0.028

BMI, kg/m2†

27 (23–31)

26 (22–29)

28 (24–32)

0.001

Comorbidities

 Charlson age–comorbidity index

3 (2–5)

3 (1–4)

4 (3–6)

 < 0.001

 Diabetes mellitus, n (%)

98 (20.9%)

34 (13.9%)

64 (28.6%)

 < 0.001

 Chronic heart failure, n (%)

35 (7.4%)

10 (4.1%)

25 (11.2%)

0.004

 Coronary artery disease, n (%)

40 (8.5%)

16 (6.5%)

24 (10.7%)

0.10

 Hypertension, n (%)

220 (47.1%)

95 (38.9%)

125 (56.0%)

0.005

 Chronic renal disease, n (%)

53 (11.3%)

6 (2.4%)

47 (21.0%)

 < 0.001

 COPD, n (%)

50 (10.7%)

31 (12.7%)

19 (8.5%)

0.14

 Chronic liver disease, n (%)

31 (6.6%)

14 (5.7%)

17 (7.6%)

0.89

 Active cancer, n (%)

69 (14.7%)

37 (15.1%)

32 (14.3%)

0.99

Organ dysfunction

 Septic shock (Sepsis-3), n (%)

127 (27.1%)

57 (23.3%)

70 (31.3%)

0.04

 SAPS II

51 (38–61)

48 (36–59)

53 (41–65)

 < 0.001

 SOFA at inclusion

8 (5–10)

6 (4–9)

9 (6–11)

 < 0.001

 SOFA at ICU discharge

1 (0–5)

0 (0–4)

1 (0–5)

0.22

ICU stay and organ support

 Duration of ICU stay, days

13 (8–22)

14 (9–22)

12 (8–22)

0.26

 Mechanical ventilation, n (%)

426 (91.2%)

231 (94.6%)

195 (87.4%)

0.41

 Duration of mechanical ventilation, days

7 (4–14)

7 (4–14)

10 (5–16)

0.27

 Vasopressors use, n (%)

403 (86.2%)

202 (82.7%)

201 (90.1%)

0.003

 RRT during ICU stay, n (%)

109 (23.3%)

25 (10.2%)

84 (37.6%)

 < 0.001

Primary outcome

 One-year mortality, n (%)

115 (24.6%)

39 (16.0%)

76 (34.1%)

 < 0.001

Secondary outcomes

 Duration of hospitalization after ICU discharge, days

11 (4–24)

11 (4–27)

12 (2–22)

0.68

 Rehospitalization at 3 months, n (%)§

113 (36.5%)

54 (32.1%)

59 (41.5%)

0.086

 SF-36 PCS at 3 months

40 (24–54)

41 (23–58)

36 (22–51)

0.43

 SF-36 MCS at 3 months

45 (33–67)

45 (32–67)

44 (31–65)

0.80

 Mortality at 3 months, n (%)

78 (16.7%)

21 (8.6%)

57 (25.7%)

 < 0.001

 Rehospitalization at 6 months, n (%)

131 (47.0%)

61 (40.1%)

70 (55.1%)

0.012

 SF-36 PCS at 6 months$

44 (29–66)

47 (34–69)

37 (25–62)

0.009

 SF-36 MCS at 6 months$

50 (27–77)

50 (21–74)

62 (31–91)

0.52

 Mortality at 6 months, n (%)

92 (19.7%)

30 (12.3%)

62 (27.9%)

 < 0.001

 Rehospitalization at 12 months,

 n (%)ǀ

160 (50.3%)

87 (48.6%)

73 (52.5%)

0.48

 SF-36 PCS at 12 months•

50 (31–74)

60 (37–81)

47 (23–63)

0.34

 SF-36 MCS at 12 months•

58 (39–76)

43 (16–90)

28 (4–50)

0.22

  1. Continuous variables were expressed as median (IQR) and were compared with the Mann–Whitney U test. Categorical variables were expressed as numbers (%) and were compared with the Fisher exact test or the Chi square test as appropriate
  2. ICU intensive care unit, BMI body mass index, COPD chronic obstructive pulmonary disease, SAPS II Simplified Acute Physiologic Score, SOFA Sequential Organ Failure Assessment, RRT renal replacement therapy, SF-36 short form-36 questionnaire, PCS physical component score, MCS mental component score, IQR interquartile range
  3. At inclusion
  4. After ICU discharge, in-hospital deaths proportion during the same hospitalization at 3 months was 50% in subtype A versus 47% in subtype B (p = 0.79)
  5. §Values calculated for 310 patients
  6. Values calculated for 279 patients
  7. ǀValues calculated for 318 patients
  8. No significant difference in missing information for readmission was found between subtypes A and B at 3, 6 and 12 months (Chi square test)
  9. values calculated for 172 patients
  10. $Values calculated for 169 patients
  11. Values calculated for 119 patients
  12. No significant difference in SF-36 response rate was found between subtypes A and B at 3, 6 and 12 months (Chi square test)
  13. Primary outcome is presented at one year after ICU discharge. Secondary outcomes are presented at 3 months, 6 months and 12 months after ICU discharge. A higher SF-36 score indicated a better mental and physical function