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Table 3 Evaluation of methodological qualities of comparative included studies

From: Current status of robotic bariatric surgery: a systematic review

Items/author*

[[7]]

[[19]]

[[20]]

[[21]]

[[22]]

[[8]]

[[23]]

[[25]]

[[33]]

[[34]]

Inclusion criteria

0

1

0

0

1

0

1

1

1

0

Exclusion criteria

0

0

0

0

0

0

0

0

0

0

Comparable demographics?

1

1

0

1

1

1

1

1

1

1

Could the number of participating centres be determined?

1

1

1

1

1

1

1

1

1

1

Could the number of surgeons who participated be determined?

1

1

1

1

1

0

0

1

1

1

Could the reader determine where the authors were on the learning curve for the reported procedure?

0

0

1

0

0

1

0

1

1

0

Were diagnostic criteria clearly stated for clinical outcomes if required?

1

1

1

1

1

1

1

1

1

1

Was the surgical technique adequately described?

1

1

1

0

0

1

0

1

0

1

Did they try to standardize the surgical technique?

1

0

1

0

0

1

0

1

0

1

Did they try to standardize perioperative care?

0

0

0

0

0

0

0

0

0

0

Was the age and range given for patients in the Robotic group?

1

0

1

1

1

1

0

1

1

1

Did the authors address whether there were any missing data?

1

1

1

1

1

0

1

0

1

0

Was the age and range given for patients in the comparative group?

1

0

0

1

1

1

0

1

1

1

Were patients in each group treated along similar timelines?

1

1

1

1

1

1

1

1

1

0

The patients asking to enter the study, did they actually take part to it?

0

0

0

0

0

0

0

0

1

0

Were drop-out rates stated?

0

0

0

0

0

0

0

0

1

0

Were outcomes clearly defined?

1

1

1

1

1

1

1

1

1

1

Were there blind assessors?

0

0

0

0

0

0

0

0

0

0

Were there standardized assessment tools?

1

0

0

0

0

0

0

0

1

0

Was the analysis by intention to treat?

0

0

0

0

0

0

0

0

1

0

Score

12

9

10

9

10

10

7

12

15

9

  1. Total score, 21; <8, poor quality; 8–14, fair quality; ≥15, good quality.
  2. * Named by reference number and listed in chronological order.