Table 4 Linear mixed model (LMM) analysis.

From: Effects of weights applied to the apex of a bag-valve-mask and pinch strength on tidal volume: a prospective simulation study

Variables

Estimate

SE

t

p

95% CI

LLCI

ULCI

(Constant)

− 122.84

242.55

− 0.51

0.614

− 605.02

359.34

Pendulums

 0 g

(Reference)

     

 100 g

25.36

19.74

1.28

0.2

− 13.5

64.22

 200 g

43.38

18.85

2.3

0.022*

6.26

80.49

 300 g

38.74

16.16

2.4

0.017*

6.86

70.61

Height

2.38

1.61

1.48

0.143

− 0.82

5.59

Tripod pinch strength

12.88

4.62

2.79

0.007**

3.69

22.07

Handgrip strength

− 0.68

1.27

− 0.54

0.594

− 3.22

1.85

  1. SE standard error, CI confidence interval, LLCI low-limit confidence interval, ULCI upper-limit confidence interval.
  2. *p < 0.05, **p < 0.01.
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