Table 1 Schedule of events (SPIRIT)

Informed consent

X

Medical history

X

Anterior-posterior and lateral X-rays of proximal femur

X

X

X

X

X

X

X

Physical Exam/injury assessment

X

Screening form

X

Randomization form

X

Pre-operative form

X

Surgery (SHS or cancellous screws)

X

Surgical forms

X

Hospital discharge form

X

Vitamin D or placebo supplementation^b

X

X

X

X

Follow-up visit forms

X

X

X

X

X

X

Assessment for re-operations

X

X

X

X

X

X

Assessment of fracture healing complications

X

X

X

X

X

Assessment of fracture healing

X

X

X

X

X

Hip Outcome Score (HOS)

X^a

X

X

X

X

X

Short-Form 12 (SF-12)

X^a

X

X

X

X

X

Radiographic Union Score for Hip (RUSH)

X

X

X

Assessment of fracture healing of the ipsilateral femoral shaft fracture^c

X

X

X

X

X

Assessment for fracture-related adverse events

X

X

X

X

X

X

X

Assessment for serious adverse events

X

X

X

X

X

X

X

Assessment for planned re-operations

X