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Table 3 Regressions of four outcome variables (row 1) on assumed predictors (column 1)

From: Heart rate changes during electroconvulsive therapy

 

Peak HR

T rise

TriseRUL

T dec

Constant

91.541 (15.808)*

1.525 (1.771)

−4.844 (2.250)

6.042 (11.994)

Age (yr)

−0.193 (0.176)

0.084 (0.023)*

0.075 (0.022)*

0.039 (0.178)

Charge dose (mC)

−0.015 (0.013)

0.002 (0.002)

−0.003 (0.003)

−0.014 (0.013)

Positioninga

0.402 (4.810)

−9.630 (0.621)*

 

2.602 (5.376)

Baseline HR (bpm)

0.456 (0.101)*

0.068 (0.013)*

0.061 (0.014)*

 

Stimulus duration (s)

  

1.273 (0.266)*

 

Seizure duration (s)

0.396 (0.139)*

  

1.093 (0.139)*

Number

114

111

63

84

Adjusted R2

0.195

0.756

0.510

0.460

F

6.465

86.108

17.161

18.710

  1. Trise, time from the onset of stimulation until the heart rate rises above baseline level; Trise RUL, Trise in patients with right unilateral stimulation; Tdec, time to the steepest heart rate decline during and after the seizure. Cell values in predictor rows are B coefficients with standard errors in parentheses; *p values < 0.01. aRelative to RUL positioning.