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Table 2 Quality appraisal of studies using Mixed Method Appraisal Tool

From: Dental conditions associated with preventable hospital admissions in Australia: a systematic literature review

Author and year

Are there clear quantitative research questions (objectives)?

Do the collected data address the research question (objective)?

Are participants recruited in a way that minimises selection bias?

Are measurements appropriate regarding the exposure/intervention and outcomes?

In the groups being compared, are the participants comparable, or do researchers take into account the difference between the groups?

Are there complete outcome data (80% or above), or an acceptable follow-up rate for cohort studies (depending on the duration of follow up)?

Overall quality score

Tennant et.al., 2000 [16]

yes

yes

yes

yes

yes

yes

1

Smith et.al, 2006 [17]

yes

yes

yes

yes

yes

yes

1

Kruger et.al, 2006 [15]

yes

yes

yes

yes

yes

yes

1

Slack-Smith et.al, 2008 [12]

yes

yes

yes

yes

yes

yes

1

Slack-Smith et.al, 2011 [13]

yes

yes

yes

yes

yes

yes

1

Slack-Smith et.al, 2012 [11]

yes

yes

yes

yes

yes

Yes

1

Verma et.al, 2014 [10]

yes

yes

yes

yes

yes

Yes

1

Alsharif et.al,2014 [14]

yes

yes

yes

yes

yes

Yes

1

Kruger et.al, 2015 [20]

yes

yes

yes

yes

yes

Yes

1

Kruger et.al, 2016 [19]

yes

yes

yes

yes

yes

Yes

1

Kruger et.al, 2016 [18]

yes

yes

yes

yes

yes

Yes

1