| Study identifier (ID) | — | ||||
| References (* main reference) |
— | ||||
| Trial registry and ID | — | ||||
| Participant characteristics | |||||
| Age | — | ||||
| Gender | — | ||||
| Ethnicity | — | ||||
| Comorbidities | — | ||||
| Clinical assessment of the hip. Dislocated hip (reducible or not reducible), clinically unstable hip (i.e. dislocatable), or clinically stable hip | — | ||||
| Ultrasound assessment of the hip. Acetabular dysplasia assessed using the alpha angle according to Graf classification of hip: I (normal), IIa or IIb (centred hip, 50 to 60 degrees of dysplasia), IIc (centred hip 43 to 50 degrees of dysplasia), III (de‐centred hip), and IV (dislocated hip) | — | ||||
| Unilateral or bilateral disease | — | ||||
| Trial characteristics | |||||
| Trial design | — | ||||
| Single centre or multicentre | — | ||||
| Country/countries | — | ||||
| How was participant eligibility defined? | — | ||||
| How many people were randomised? | — | ||||
| Number of participants in each intervention group | — | ||||
| Number of participants who received intended treatment | — | ||||
| Number of participants who were analysed | — | ||||
| Splint used (include details of timing, weaning, etc.) | — | ||||
| Comparator (include details of timing, weaning, etc.) | — | ||||
| Risk of bias | |||||
| Item | Comment | Judgement | |||
| Allocation of intervention | — | High/low/unclear | |||
| Concealment of allocation | — | High/low/unclear | |||
| Blinding of participants and personnel | — | High/low/unclear | |||
| Blinding of outcome assessment | — | High/low/unclear | |||
| Incomplete outcome data | — | High/low/unclear | |||
| Selective outcome reporting | — | High/low/unclear | |||
| Other potential threats to validity | — | High/low/unclear | |||
| Outcomes | Intervention | Control | Time point | ||
| Measurement of acetabular index, as determined by radiographs (angle) | — | — | 1 year/2 years/5 years/other (specify) | ||
| Need for operative intervention to achieve reduction | — | — | — | ||
| Need for operative intervention to address dysplasia | — | — | — | ||
| Avascular necrosis (include grading system) | — | — | — | ||
| Femoral nerve palsy | — | — | — | ||
| Other nerve palsies | — | — | — | ||
| Health economic assessment (including financial impact on the family) | — | — | — | ||
| Bonding between parents and child (including obstacles to breastfeeding, problems with winding and bathing baby) | — | — | — | ||
| Fine motor skill development | — | — | — | ||
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