Summary
Objectives:
To evaluate the efficiency and acceptance of digital pen and paper technology for
real-time clinical data acquisition.
Methods:
A prospective interventional unblinded study involving consecutive patients in two
clinical settings during a defined time-frame was proposed. The first trial was designed
as a stress test to evaluate acceptance in a workload-intensive environment. Acceptance
was assessed using observations and a satisfaction questionnaire. The second trial
was intended to determine the reliability of data acquisition in a controlled environment.
Reliability was assessed by comparing the performance of the digital pen against scanner
analysis and a double human blinded acquisition.
Results:
Overall, users were satisfied with the use of the digital pen (median 3 on a Likert-scale
(–5, 5)). Without any specific user training, successful data acquisition was greater
than 80%. Use of this technology required less adaptation than standard computer devices,
and was easy to learn and use. Ergonomic problems shaded the perception of the technology
by inducing an increased cognitive load. Digitalized data was missing either because
of a bug or due to lack of data validation. The reliability obtained with the digital
pen was significantly lower to that obtained with the scanner.
Conclusions:
Natural technology such as the digital pen proved to be a good tool in stressful
clinical environments without interfering with the normal workload or increasing the
time for data acquisition. However, in order to improve quality of data acquisition,
designing acquisition forms specifically for the use of digital pens is of paramount
importance.
Keywords
Acceptance - usability - cognitive impact - human-machine interface - digital pen
- data acquisition
