Table 1 Requirements of PtDA based on patients’ needs
Functional requirements |
 • PtDA encourages patients to participate in medical decision-making. |
 • PtDA provides overview of (all) available options for medication. |
 • PtDA provides the opportunity to compare options for medication. |
 • PtDA supports patients to gain insight into their preferences, worries and questions regarding medication. |
 • PtDA urges patients to express their preferences, worries and questions about initiating medication. |
Requirements for content, design and distribution |
 • The PtDA includes information about the decision-making process, SDM and the importance of the role of the patient. |
 • Available options for medication are listed to provide an overview. |
 • Medication can be compared for: |
  o Clinical aspects: aim and working mechanism of medication, manner of administration, time to benefit, risks for side effects, follow-up process, combination with other drugs, influence on fertility/pregnancy, continuing or stopping medication and history of medication. |
  o Possible implications for daily life: restrictions for nutrition and alcohol, storage instructions, influence on daily routine and guidelines for traveling. |
 • Tailoring: |
  o Appropriate treatment options are tailored to individual patient. |
  o Content of information is tailored to individual patient based on gender. |
  o Content of information is tailored to individual patient based on desire to have children. |
  o Content of information is tailored to individual patient based on risk profilea. |
 • Information in PtDA is easy to read: |
  o Pictograms are used as much as possible to decrease amount of text. |
  o Pictures and videos are used to provide insight into administration of medication. |
  o Information is written in plain language with links to definitions. |
  o Information is provided in portions; amount and complexity of information can be adapted to individual needs. |
 • PtDA provides the opportunity to give value to specific treatment options and features of the specific treatment options. |
 • PtDA includes exercises to gain insight into patients’ preferences, worries and questions. |
 • PtDA provides a summary of patients’ notes, preferences, worries and questions which can be saved and printed. |
 • Can be used at home (i.e. outside the hospital). |
 • Does not take more than 30 minutes to complete (on average). |