Table 2.

Determinants to be analysed

	Determinants
Programme-specific	▸ Number of planned contacts ▸ Duration of the intervention ▸ Training given to interventionists (standardised/heterogeneous)* ▸ Group contact with peers (y/n)*† ▸ Keeping diaries for symptom-monitoring (y/n)‡ ▸ Goal-setting skills (y/n)*† ▸ Problem-solving skills (y/n)*† ▸ Support allocation skills (y/n)*
Patient-specific	▸ Sex ▸ Age ▸ Disease severity ▸ Symptom severity ▸ Number of comorbid conditions ▸ Depression ▸ Level of education Optional variables (only analysed if sufficient data available): ▸ Recently diagnosed ▸ Self-efficacy ▸ Living status ▸ Body mass index ▸ Smoking status

*Based on self-management literature.

†Based on social cognitive theory.

‡Based on behavioural techniques.