Figure 1.

Study data collection list_
| CATEGORY | DATA VARIABLE | MEASUREMENT DESCRIPTION |
|---|---|---|
| Demographic data | Age | Years |
| Gender | Male/female | |
| Education | Primary school, secondary or vocational school, higher vocational college, university education, master’s/doctoral degree | |
| Marital status | Married, divorced, widowed, single | |
| Employment status | Employed, unemployed, retired | |
| Clinical history | Duration of T2D and/or AH | Years |
| Therapy for T2D and AH | Name of the drug and dose | |
| Behavioural risk factors | Smoking | Yes/no |
| Physical activity | Adequate/inadequate | |
| Eating habits | Healthy/unhealthy | |
| Alcohol use | Score on the AUDIT-C questionnaire | |
| Quality of life of patients with T2D | Quantitative | Score on the ADS |
| Qualitative | Analysis of interviews and focus groups | |
| Empowerment of patients with T2D | Quantitative | Score on the DES |
| Qualitative | Analysis of interviews and focus groups | |
| Acceptability of the intervention | Quantitative | Score on questionnaire, based on TFA |
| Qualitative | Analysis of interviews and focus groups | |
| Knowledge about T2D | Quantitative | Score on the DKT |
| Knowledge about AH | Quantitative | Score on the HKT |
| Attitudes towards peer support intervention | Qualitative | Analysis of interviews and focus groups |
