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Table 4 Evaluation of methodological quality of the reviewed studies according to PEDro-Scale (Maher et al., 2003 [32])

From: Influence of combined physical and cognitive training on cognition: a systematic review

Study

Inclusion/exclusion criteriaa

Randomisation of groupsb

Concealmentc

Similarity of baseline characteristicsd

Blinded participantse

Blinded therapistf

Blinded assessorg

Key Outcomeh

Intention to treati

Between groups statisticsj

Mean/Standard deviationk

Final score

Barnes et al., 2013 [36]

yes

yes

yes

yes

no

no

yes

yes

yes

yes

yes

9

Choi et al., 2015 [37]

yes

yes

no

yes

yes

no

no

yes

no

yes

yes

7

Coelho et al., 2013 [38]

yes

no

no

yes

no

no

no

yes

yes

yes

yes

6

De Andrade et al., 2013 [39]

yes

no

no

yes

no

no

no

yes

yes

yes

yes

6

De Bruin et al., 2013 [48]

yes

yes

yes

yes

yes

no

no

no

no

no

yes

6

Evans et al., 2009 [34]

yes

yes

yes

yes

no

no

no

yes

yes

yes

yes

8

Fabre et al., 2002 [49]

yes

yes

no

yes

no

no

no

yes

yes

no

yes

6

Hars et al., 2013 [42]

yes

yes

no

yes

no

no

yes

no

yes

yes

yes

7

Hiyamizu et al., 2012 [43]

yes

yes

yes

yes

no

yes

yes

no

no

yes

yes

8

Kayama et al., 2014 [44]

yes

no

no

yes

no

no

no

yes

no

yes

yes

5

Legault et al., 2011 [50]

yes

yes

no

yes

yes

no

no

yes

yes

yes

yes

8

Marmeleira et al., 2009 [45]

yes

yes

no

yes

no

no

no

yes

yes

yes

yes

7

Oswald et al., 2006 [33]

yes

no

no

yes

no

no

no

no

no

yes

yes

4

Plummer-D’Amato et al., 2012 [41]

yes

yes

yes

yes

no

no

yes

yes

yes

yes

yes

9

Schwenk et al., 2010 [35]

yes

yes

yes

yes

yes

yes

yes

no

no

yes

yes

9

Shatil, 2013 [51]

yes

yes

no

yes

no

no

no

no

yes

yes

yes

6

Theill et al., 2013 [46]

no

no

no

yes

no

no

no

no

no

yes

yes

3

Van het Reve et al., 2014 [52]

yes

yes

yes

yes

no

no

no

no

no

yes

yes

6

Yokoyama et al.,2015 [47]

yes

yes

yes

yes

yes

no

no

yes

no

yes

yes

8

You et al., 2009 [40]

yes

yes

no

yes

no

no

no

yes

yes

yes

yes

7

  1. aEligibility criteria were specified; bParticipants were randomly allocated to groups, cAllocation to groups was concealed, dThe groups were similar at baseline regarding the most important prognostic indicators, eParticipants were not aware of the group, in which they were allocated (blinded), fStaff that administered training was not aware (blind) of the group status (intervention-control), gAssessors measuring at least one key outcome were not aware (blind) of the group status, hMeasures of at least one key outcome were obtained from more than 85 % of the subjects initially allocated to groups, iAll subjects for whom outcome measures were available received the treatment or control condition as allocated or, where this was not the case, data for at least one key outcome were analysed by “intention to treat”, jThe results of between-group statistical comparisons are reported for at least one key outcome, kThe study provides both point measures and measures of variability for at least one key outcome
  2. Yes = 1 point, no = 0 points