Table 2.

Diagram showing the data collection time points for all treatment groups; long arm cast and flexible intramedullary nail

	Data collection time points
	Baseline	Treatment	1. Check-up 10 days	2. Check-up 6 weeks	3. Check-up 3 months	4. Check-up 6 months	5. Check-up 12 months
Long arm cast treatment
Diagnosis, eliqibility	x
Enrolment	x
Physical examination	x			x	x	x	x
Bone age radiograph		x
Standard radiograph (AP and lateral)	x	x*	x	x	x	x	x
PedsQL pain	x		x	x	x	x	x
PROMIS†	x			x	x	x	x
Flexible intramedullary nail treamtment
Diagnosis, eliqibility	x
Randomisation	x
Physical examination	x			x	x	x	x
Bone age radiograph		x
Standard radiograph (AP and lateral)	x	x*		x	x	x	x
PedsQL pain	x		x	x	x	x	x
PROMIS	x			x	x	x	x

*Standard lateral and AP radiograph taken after fracture fixation.

†PROMIS Paediatric Upper Extremity, PedsQL Main, QuickDASH.

AP, anterioposterior; PedsQL, Paediatric Quality of Life Inventory; PROM, patient-reported outcome measure.