The Use of Electronic Diaries in Respiratory Studies

@article{Tiplady1997TheUO,
  title={The Use of Electronic Diaries in Respiratory Studies},
  author={Brian Tiplady and Graham Kenneth Crompton and Maria H Dewar and F. G. E. B{\"o}llert and Simon Matusiewicz and L Malcolm Campbell and D. Brackenridge},
  journal={Therapeutic Innovation \& Regulatory Science},
  year={1997},
  volume={31},
  pages={759 - 764}
}
Background—Electronic diary cards have advantages over paper diaries for daily collection of data on lung function and symptoms in patients with respiratory disorders. The suitability of a pen-based electronic diary (Apple MessagePad) for this purpose was assessed in a clinical trial setting. Methods—Two studies were carried out in patients with chronic obstructive airways disease: 1. An open randomized two-period crossover study comparing electronic and paper diaries in 22 clinic outpatients… 

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Statistical Methods
P > 0.05 0.01 < P < 0.05 0.001 < P < 0.01 * * * multiple regression analyses were tested by t tests. Regression lines were compared by means of analysis of covariance in which differences in slopes
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