All participants partaking the SUPPORT-Pro study will receive the full intervention for 3 months which implies: (1) Full access to the platform (2) a newsletter sent by email every 2 weeks to inform them on the new blogs posted on the platform.

During the following 9 months, participants will still have access to the platform, but no newsletter will be sent (sustainability phase).

Participants will have access to the SUPPORT-Pro self-guided online training platform addressing many aspects of type 1 diabetes care. The SUPPORT-Pro content was developped by a team of health professionals specialized in type 1 diabetes as well as patient partners. It's content is regularly updated, evidence-based and divided into 6 categories (medication, blood glucose monitoring, diet, physical activity, hypo and hyperglycemia, health and other particularities). In each category, users can pick between 3 levels (beginner, intermediate and advanced) according to their level of confidence and knowledge.

Participants will be asked to fill out questionnaires at baseline, 3-month, and 12-month of the intervention which include the following: Eligibility assessment, identification, background, confidence, platform satisfaction.

Levels of confidence will be measured using a questionnaire inspired from the Maternal Self-Efficacy for Diabetes Management Scale (MSED). For this study, MSED was modified to better assess the self-confidence of health care professionals. We have converted the 17-item questionnaire to a 19-item questionnaire (removing questions specific to familial support and adding questions on new therapies and technologies) and edited the wording of the questions. Every item is rated on a scale from 1 to 5. The satisfaction score will be the sum of all items, on a maximum of 95.

Confidence levels at 3 months and at baseline will be compared using paired t-test with a 95% confidence interval, if normality assumption of the paired difference holds. Otherwise, the non-parametric counterpart, Wilcoxon signed-rank test, will be used and a 95% non-parametric confidence interval will be provided.

Levels of confidence will be measured using a questionnaire inspired from the Maternal Self-Efficacy for Diabetes Management Scale (MSED). For this study, MSED was modified to better assess the self-confidence of health care professionals. We have converted the 17-item questionnaire to a 19-item questionnaire (removing questions specific to familial support and adding questions on new therapies and technologies) and edited the wording of the questions. Every item is rated on a scale from 1 to 5. The satisfaction score will be the sum of all items, on a maximum of 95.

Confidence levels at 3 months and at baseline will be compared using paired t-test with a 95% confidence interval, if normality assumption of the paired difference holds. Otherwise, the non-parametric counterpart, Wilcoxon signed-rank test, will be used and a 95% non-parametric confidence interval will be provided.