Some estimate of variance is reported for the main results?

1

2

1

2

2

2

2

2

2

1

2

1

2

0

2

2

Controlled for confounding?

0

0

0

0

1

1

1

1

0

0

0

1

0

1

1

0

Results reported in sufficient detail?

2

2

1

2

2

2

1

2

2

1

2

2

2

2

2

2

Conclusions supported by the results?

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Summary Score

0.60

0.68

0.73

0.64

0.77

0.77

0.68

0.68

0.71

0.60

0.68

0.86

0.86

0.73

0.77

0.77