Shorten the paragraph in to 100 words, "The study assumed that there would be no change in HbA1c levels in the usual care group, while a reduction of 4.8 mmol/mol (0.5%) was expected in the intervention group. The average initial HbA1c at KBTH was assumed to be 72 mmol/l sd 8 (8.7% sd 2.7). To have an 80% chance of detecting a 0.5% difference in average HbA1c between the intervention and control groups (with a significance level of 0.05, two-tailed), 148 participants (74 in each group) were needed. Considering a 20% dropout rate, 89 participants were required in each group after screening. It was also assumed that 20% of the participants recruited would be disqualified during screening, so 213 participants (107 in each group) needed to be recruited. During the recruitment period, the COVID-19 pandemic was escalating, and vaccines were not yet available. Given the uncertainties of the pandemic, all potential participants were evaluated. The first 206 individuals who met the eligibility criteria were then sequentially randomized