Table 2.

The LC-6D-QoL scale following the consensus of the Delphi panel

Dimension	Indicator	Question	1	2	3	4	5
1.General Health	1.1. General health	How would you rate your overall state of health?	Very poor	Poor	Fair	Good	Very good
2. Physical Health	2.1. Pain	In the last month, how much pain has interfered with your daily life (including work and household tasks)?	Very much	Quite a lot	Somewhat	A little	Not at all
	2.2. Physical fatigue	In the last month, to what extent have you felt physically fatigued while performing everyday activities?	Very often	Quite often	Sometimes	Rarely	Never
	2.3. Functionality	In the last month, to what extent did you feel limited when making moderate effort, carrying groceries, climbing stairs, or walking for an hour?	Very much	Quite a lot	Somewhat	A little	Not at all
	2.4. Dysautonomia	In the last month, have you experienced symptoms such as dizziness, rapid heartbeat, or excessive sweating when changing position (e.g., standing)?	Very often	Quite often	Sometimes	Rarely	Never
3. Mental Health	3.1. Emotional	In the last month, to what extent have you felt depressed or anxious?	Very much	Quite a lot	Somewhat	A little	Not at all
	3.2. Mental fatigue	In the last month, to what extent have you felt mentally fatigued while performing everyday activities?	Very much	Quite a lot	Somewhat	A little	Not at all
	3.3. Cognitive problems	In the last month, have you had difficulties concentrating or remembering essential information (e.g., appointments, names, or tasks)?	Very much	Quite a lot	Somewhat	A little	Not at all
4. Daily Functioning	4.1. Limitations in daily activities	In the last month, to what extent have you felt limited in performing daily tasks, participating in leisure activities, or moving freely?	Very often	Quite often	Sometimes	Rarely	Never
	4.2. Personal autonomy	In the last month, how would you describe your level of autonomy in performing daily activities (personal hygiene, medication management, cooking)?	Very poor	Poor	Fair	Good	Very good
5. Social Relationships and Support	5.1. Quality of social relationships	In the last month, to what extent did you feel your family and friends understand your situation and support you?	Very much	Quite a lot	Somewhat	A little	Not at all
	5.2. Social isolation	In the last month, how often have you had contact with friends?	Never	Rarely	Sometimes	Quite often	Very often
	5.3. Affective and sexual life	In the last month, how much has your health affected your romantic or sexual life?	Very much	Quite a lot	Somewhat	A little	Not at all
6. Economic and Work-related Aspects	6.1. Loss of income	In the last month, how much has your health affected your income?	Very much	Quite a lot	Somewhat	A little	Not at all
	6.2. Work performance	In the last month, to what extent has your health affected your work or academic performance?	Very much	Quite a lot	Somewhat	A little	Not at all
	6.3. Return-to-work challenges	In the last month, have you needed adaptations at work (flexible hours, team support, or task adjustment)?	Very much	Quite a lot	Somewhat	A little	Not at all