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Table 3 Study methods and quality scores

From: Motivations for being informal carers of people living with dementia: a systematic review of qualitative literature

Authors (date)

Sampling

Data collection (all face-to-face and one-to-one unless otherwise specified)

Theoretical background

Data analysis

Quality scores (max 12)

Albinsson & Strang (2003) [30]

NR

Cross-sectional, interviews

NR

Data categorisation based on hermeneutic approach

11

Cahill (2000) [31]

Non-probability

Cross-sectional, semi-structured interviews

NR

NR

7

Chang et al. (2011) [32]

Purposive

Cross-sectional, semi-structured interviews

NR

Thematic analysis

11

Eriksson et al. (2013) [33]

NR

Longitudinal, interviews

Feminist perspective

‘Analytic framework’

7

Gurayah (2015) [34]

Purposive

Cross-sectional, semi-structured interviews

NR

Thematic analysis

6

Harris (1998) [35]

Purposive

Cross-sectional, in-depth interviews

NR

Content analysis

11

Harris & Long (1999) [36]

Purposive

Cross-sectional, in-depth interviews

NR

NR

6

Ho et al. (2003) [37]

Purposive

Cross-sectional, in-depth, semi-structured interviews

Stress model Thematic analysis

11

Kim (2009) [38]

Purposive

Cross-sectional, in-depth, semi-structured interviews

Transcendental phenomenology

Transcendental phenomenological analysis

10

Lin et al. (2011) [39]

NR

Longitudinal, semi-structured interviews & observations

Grounded theory Constant comparative analysis

6

McDonnell & Ryan (2014) [40]

Purposive

Cross-sectional, in-depth, semi-structured interviews

Colaizzi’s (1978) ‘seven-stage process’ to identify themes

11

Meyer et al. (2015) [41]

Snowball

Cross-sectional, in-depth, semi-structured interviews & 1 focus group

NR

Thematic analysis

9

Morgan & Laing (1991) [42]

NR

Longitudinal, unstructured interviews

Grounded theory

Constant comparative method

7

Murray et al. (1999) [43]

NR

Cross-sectional, semi-structured interviews

Grounded theory

Content analysis

7

Pang & Lee (2017) [44]

Purposive

Cross-sectional, in-depth interviews

NR

Content analysis

11

Peacock et al. (2010) [45]

Purposive

Cross-sectional, 6 focus groups & 3 interviews

NR

Thematic analysis

9

Qadir et al. (2013) [46]

NR

Cross-sectional, in-depth, semi-structured interviews

NR

Thematic analysis

7

Quinn et al. (2015) [47]

NR

Cross-sectional, semi-structured interviews

Interpretative phenomenological analysis (IPA)

Thematic analysis

11

Russell (2001) [48]

Purposive

Cross-sectional, in-depth, open-ended interviews

NR

Inductive analysis

7

Santos et al. (2013) [49]

Convenience

Cross-sectional. Analysis of session transcripts (transcribed from)

Interpretative phenomenological analysis (IPA)

Qualitative analysis

7

Siriopoulos et al. (1999) [50]

NR

Cross-sectional, semi-structured interviews

NR

Giorgi’s (1985) phenomenology method

7

Sterritt & Pokorny (1998) [51]

Purposive

Cross-sectional, open-ended question interviews

NR

Thematic analysis

4

van Wezel et al. (2016) [52]

NR

Cross-sectional, individual interviews & focus groups

NR

‘Generic qualitative approach’ to identify themes

9

Vellone et al. (2002) [53]

NR

Cross-sectional, interviews

Phenomenology

Phenomenological analysis to identify themes

9

Wallhagen & Yamamoto-Mitani (2006) [54]

NR

Longitudinal, semi-structured interviews

NR

Constant comparative techniques to identify themes

9

Yamamoto & Wallhagen (1997) [55]

Theoretical

Cross-sectional, interviews

NR

Constant comparative approach to develop categories

11

  1. NR Not reported