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Table 5 Specific problems

From: Usability of therapy controllers in elderly patients with deep brain stimulation

Tasks - Differences between groups at baseline (T1) and six months later (T2)

T1

Video Group

Number of Attempts (SD)

T1

Control Group

Number of Attempts (SD)

T1

p-value

T2

Video Group

Number of Attempts (SD)

T2

Control Group

Number of Attempts (SD)

T2

p-value

Ass.1: Opening the lid of the controller

1.30 (0.57)

1.81 (0.93)

0.51

1.17 (0.38)

1.95 (0.91)

0.01

Ass. 5: Identifying the icon of the IPG battery

1.20 (0.41)

1.57 (0.51)

0.02

1.11 (0.32)

1.42 (0.51)

0.11

Ass. 7: Knowing the meaning of a single beep

1.00 (0.00)

1.33 (0.48)

0.05

1.00 (0.00)

1.11 (0.32)

0.60

Ass. 7: Knowing the meaning of a triple beep

1.10 (0.31)

1.52 (0.51)

0.04

1.17 (0.38)

1.31 (0.48)

0.44

  1. Mann-Whitney-Tests, specific problems at individual task