. 2016 Jan 18;6(1):e009362. doi: 10.1136/bmjopen-2015-009362

Table 2.

Overview of data collection and outcome measures

Variable	Data source and instrument	Time point (months)
Primary outcome Peripheral fracture	HES inpatient (ICD-10, OPCS codes) HES A&E GP records (Read Codes CTV2 & 3) Self-report CRF	0–18 months
Secondary outcomes Falls	Retrospective CRF—Falls in previous 12 months CRF—Falls in previous 4 months Prospective Monthly falls diary	0 4, 8, 12, 18 0–12 months
Health-related quality of life	CRF—Short-Form 12 (V.2) CRF—EuroQol EQ-5D	0, 4, 8, 12, 18 0, 4, 8, 12, 18
Mortality	GP records/HES	0–18 months
Covariates
Ethnicity/marital status/living arrangements/education (years)	CRF	0
Height/weight (BMI)	CRF	0
Mobility	CRF	0, 4, 8, 12, 18
Frailty	CRF—Strawbridge²¹	0, 18
Clock drawing test	CRF—Shua-Haim²²	0
Healthcare resource use	CRF—Primary care consultations CRF—Secondary care attendances (NHS and private)	4, 8, 12, 18

A&E, accident & emergency; BMI, body mass index; CRF, case record form; CTV, Clinical Terms Version; GP, general practitioner; HES, Hospital Episode Statistics; ICD, International Classification of Diseases; NHS, National Health Service; OPCS, Office of Population Census & Surveys.