Methodological quality assessment items15
| Item | Description |
|---|---|
| A | Key baseline characteristics are presented separately for treatment groups (age, and at least one outcome measure) and for cluster randomised controlled trials and controlled trials, positive if baseline outcomes were statistically tested and results of tests were provided |
| B | Randomisation procedure clearly and explicitly described and adequately carried out (generation of allocation sequence, allocation concealment and implementation) |
| C | Validated measures of motor development used (validation in same age group reported and/or cited) |
| D | Drop out described and ≤20% for <6-month follow-up or ≤30% for ≥6-month follow-up |
| E | Blinded outcome assessments (positive when those responsible for assessing motor development at outcome were blinded to group allocation of individual participants) |
| F | Motor development assessed a minimum of 6 months after pretest |
| G | Intention to treat analysis for motor development outcomes(s) (participants analysed in group they were originally allocated to, and participants not excluded from analyses because of non-compliance to treatment or because of some missing data) |
| H | Potential confounders accounted for in motor development analysis (eg, baseline score, group/cluster, age) |
| I | Summary results for each group+treatment effect (difference between groups)+its precision (eg, 95% CI) |
| J | Power calculation reported, and the study was adequately powered to detect hypothesised relationships |