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Table 2 Analogue patients’ psychophysiological activity: total sample means, standard deviations and mean observed responses compared to baseline values

From: Studying medical communication with video vignettes: a randomized study on how variations in video-vignette introduction format and camera focus influence analogue patients’ engagement

   

Baseline

Introduction

Consultation

 

N

Range

M

SD

M

SD

M ∆

M

SD

M ∆

SBP (mm/Hg)

157

85.7–172.7

118.9

15.9

125.9

17.8

7.0

122.1

16.8

3.2

DBP (mm/Hg)

157

47.5–123.6

69.7

11.3

72.9

12.3

3.1

71.4

11.7

1.6

HR (BPM)

161

45.4–109.8

71.0

9.6

72.6

10.2

1.6

72.1

9.9

1.1

SCL (μS)

127

0.6–22.6

3.9

3.0

5.4

3.9

1.4

4.9

3.4

0.9

SCRs (spikes/min)

127

0–11

1.3

1.7

2.9

2.9

1.6

2.1

2.1

0.8

  1. Notes. Original data are displayed in this table: psychophysiological activity during baseline, the introduction part of the vignette, and the consultation part of the vignette. Data are not stratified by introduction format and camera focus, i.e., this table displays the increase in psychological activity as elicited by watching the vignette for the total analogue patient sample. M ∆ = the mean observed response compared to baseline values; SBP = systolic blood pressure; DBP = diastolic blood pressure; HR = heart rate; SCL = skin conductance level; SCRs = skin conductance responses. Logarithms (square roots in case of SCRs) of the original values were used in analyses. Significant effects of introduction format and camera focus on the increase in psychophysiological activity from baseline to the vignette are displayed in Fig. 3a, b and 4