Table 1.

Questionnaires

Questionnaires *primary outcome **secondary outcome		FORECAST patients		Healthy volunteers	Painstorm dataset
		Baseline	Follow-up	Baseline	Extended
FORECAST outcomes	Sciatica Bothersomeness Index (SBI)21	X	X*
	Numerical Pain Rating Scale—previous 2 weeks (worst, least, average for leg /back pain)	X	X*
	Global Rating of Change Scale		X**
Neuropathy/neuropathic pain	PainDETECT79	X	X		X
	Neuropathic Pain Symptom Inventory (NPSI)80	X	X	X	X
	DN469	X	X		X
	Michigan Neuropathy Screening Instrument (MNSI)70				X
Pain location, severity	Pain location—list of sites, body chart	X	X	X	X
	Monthly pain diary	X	X
	Chronic Pain Grade (CPG)71				X
	Brief Pain Inventory (BPI)72				X
Disability	Oswestry Disability Index (ODI 2.1a)57 – Leg Pain	X	X**
	Oswestry Disability Index (ODI 2.1a)57—Low Back Pain	X	X
	Oswestry Disability Index (ODI 2.1a)57—combined leg and back pain			X
Risk	Keele STarT Back tool58	X
Lifestyle	International Physical Activity Questionnaire (IPAQ, long version)81	X	X	X	X
Quality of life	EQ-5D-5L (v1.2)59	X	X	X	X
Psychosocial questionnaires	PROMIS SF8a—Ability to participate in social roles and activities43 (v1.0)	X	X	X	X
	Pain Catastrophising Scale (PCS)44	X	X	X	X
	PROMIS SF8-a—Depression and Anxiety43 (v1.0)	X	X	X	X
	Adverse Childhood Events (ACEs) (none, 1, 2,>2)	X		X	X
	Prolonged hospitalisation for life-threatening condition (yes/no)	X		X	X
	PROMIS SF8a—Sleep Disturbance43 (v1.0)	X	X	X	X
	PROMIS SF8a—Fatigue43 (v1.0)	X	X	X	X
	PROMIS SF4a—instrumental support43 (v1.0)	X	X	X	X
	PROMIS SF4a—Emotional Support43 (v1.0)	X	X	X	X
	Ten Item Personality Index (TIPI)45	X		X	X
	State Optimism Measure (SOM-7)	X	X	X	X
	Illness Perception Questionnaire (IPQ-R)82	X
	Sciatica Perception Questionnaire (SPQ)	X	X
	Stigma Scale for Chronic Illnesses (SSCI)—modified48	X	X
	‘in your own words’ (impact on social and financial situation)				X

FORECAST: Factors predicting the transition from acute to persistent pain in people with ‘sciatica’