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Table 5 Methodological quality of included quantitative studies (n = 8)

From: A systematic review of the impact of stigma and nihilism on lung cancer outcomes

Quality category

Studies meeting criterion, n (%)

1. Subject Selection

 

2. Representative of population of interest

1 (12.5)

1. Selected group

1 (12.5)

0. Highly selected or not described

6 (75.0)

2. Comparability of groups analysed on demographic characteristics

 

2. Comparable (or matched)

1 (12.5)

1. Not comparable but adjusted analysis used

1 (12.5)

0. Not comparable and not adjusted for differences

3 (37.5)

Not applicable: no comparisons made

3 (37.5)

3. Participation rate

 

2. High participation rate (>80%) and no important differences between participants and non-participants

0

1. Moderate participation rate (65-80%) and no important difference between participants and non-participants

0

0. Low participation rate (<65%), important differences between participants and non- participants or not described

8 (100)