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Table 4 Quality assessment ratings for included studies

From: The impact of interventions to prevent obesity or improve obesity related behaviours in children (0–5 years) from socioeconomically disadvantaged and/or indigenous families: a systematic review

Quality component Strong rating No (%) Moderate rating No (%) Weak rating No (%)
Selection bias 11/32 (34.3) 6/32 (18.8) 15/32 (46.9)
Study design 22/32 (68.8) 7/32 (21.9) 3/32 (9.4)
Confounders 21/32 (65.6) 0/32 (0.0) 11/32 (33.3)
Blinding 3/32 (9.4) 20/32 (62.5) 9 (28.1)
Data collection methods 13/32 (40.6) 0/32 (0.0) 19/32 (59.4)
Withdrawal and drop out 13/32 (40.6) 14/32 (43.8) 5 (15.6)
Global rating 3/32 (9.4) 14/32 (43.8) 15/32 (46.9)
  1. Low quality: two or more weak ratings; moderate quality: less than four strong and one weak rating, high quality: four strong and no weak ratings.