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Table 2 Interview structures according to Schwartz et al. [14] with common examplesa

From: Patients’ views of adverse events in primary and ambulatory care: a systematic review to assess methods and the content of what patients consider to be adverse events

Questions

Response optionsb

  

Close-ended

Partly open-ended

Open-ended

Structured

type 1

- written questionnaire

- face-to-face interview

- telephone interview

type 2 (as type 1)

type 3 (as type 1)

Semi-structured

type 4

- telephone interview

type 5

- problem-centered interview

type 6

- expert interview

- focused interview

Unstructured

type 7

type 8

type 9

- narrative interview

- in-depth interview

  1. aThis classification was used for the initial assessment of included studies
  2. b Response options according to Schwartz et al. [14]: close-ended implies prior determination of possible answers; partly open-ended allows addition of responses other than the presetted ones; open-ended response option leaves the respondant to answer freely