Table 2.

International Classification of Function (ICF) Environmental Factors identified as at least moderately relevant by at least 30% of participants.

ICF Code	ICF Category Description	% Ranking Category as ≥ Moderately Relevant
e1	Products and technology
e1101	Medications	75
	• Unwanted side effects of medications	64
	• Unwanted side effects of prednisone specifically	73
e130	Products and technology for education (books, computer hardware and software, Internet)	42
e1650	Financial assets (money), tangible assets (houses, land, owned goods, and technology), other assets	31
e3	Support and relationships
e310	Immediate family	79
e320	Friends	72
e325	Acquaintances, peers, colleagues, neighbours, community members	51
e350	Health professionals	82
nc-cf^*	Support from others in a similar situation – e.g., other patients with vasculitis, patients with other chronic conditions, support groups	63
eE4	Attitudes (of family members, friends, colleagues, health professionals, etc.)
e410	Attitudes of immediate family members	73
e420	Attitudes of friends	61
e425	Attitudes of acquaintances, peers, colleagues, neighbours, and community members	47
e450	Attitudes of health professionals	73
Other factors that may affect health
e260	Air quality	32
e580	Health-related services, systems and policies including access to medical services and medications, health insurance	55
nc-cf^*	Information about disease and drugs, either provided by healthcare providers or researched in journals, books, or Internet	71
nc-cf ^*	Living arrangement — private house or apartment, amount of external noise, proximity to traffic, to parks or exercise facilities, etc.	50
nc-cf ^*	Stress – physical or psychological stress from any source	49
nc-cf ^*	Clinical research in teaching hospitals	33

ICF code is a numeric identifier that uniquely identifies each ICF category; it starts with a letter that denotes the ICF component (“e” for environmental factors) and is followed by numbers that specify progressively more detailed categories; for example, category e310 (family members) is a subcategory of the broader category e3 (support and relationships).
↵* Not covered – contextual factors; category not covered by the current ICF classification.