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Table 3 Characteristics of patients according to first weaning trial outcome

From: Handgrip strength to predict extubation outcome: a prospective multicenter trial

Variables

First weaning trial

p

Success (n = 171)

Failure (n = 60)

Age (y)

64 [52–74]

68 [58–77]

0.01

BMI (kg/m2)

28.2 [22.8–33]

27.9 [23.8–33.9]

0.89

Gender (M/F)

103/69

36/25

0.90

SAPS II

52 [40–65]

54 [45–72]

0.16

Sepsis n (%)

95 (55.2)

44 (72.1)

0.021

Baseline respiratory disease n (%)

50 (29.1)

24 (39.3)

0.14

Baseline cardiac disease n (%)

57 (33.1)

31 (50.8)

0.015

MRC score

47 [37–55]

43 [33–52]

0.028

MRC score subgroup n (%)

0.19

 < 36

37 (21.6)

18 (30)

 

 36–47

49 (28.5)

20 (33.3)

 

 ≥ 48

85 (49.7)

22 (36.7)

 

Handgrip strength (kg)

12 [5–18]

8.5 [2.5–16]

0.057

Dominant arm abduction subgroup n (%)

0.47

 0°

11 (6.4)

6 (10)

 

 0–45°

58 (33.9)

23 (38.3)

 

 45–90°

102 (59.7)

31 (51.7)

 

Maximal inspiratory pressure (cmH2O)

30 [17, 20–41]

27 [16–37]

0.41

Peak expiratory cough flow (L/min)

62 [47–80]

55 [31–69]

0.006

  1. BMI body mass index, SAPS Simplified Acute Physiology Score, MRC Medical Research Council