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First published online February 28, 2025

Implications of the Glycemia Risk Index in Assessing Metabolic Control and its Correlation With Therapy-Related Quality of Life During-Ramadan Fasting in Adults With Type 2 Diabetes

Abstract

Background:

Ramadan fasting presents unique challenges for individuals with type 2 diabetes (T2D) due to alterations in diet and medication regimens. This study evaluates the effects of Ramadan fasting on glycemia by utilizing the glycemia risk index (GRI), which integrates both hypoglycemic and hyperglycemic risks into a unified metric, alongside continuous glucose monitoring (CGM) data. In addition, the study examines the correlation between GRI and diabetes therapy-related quality of life (DTR-QOL) to understand the broader impact on patient outcomes.

Methods:

An ambispective, one-group pre-post design was employed at a tertiary diabetes treatment center, involving 111 adults with T2D. Data were collected across three periods: one month before Ramadan, during, and one month after. Clinical, metabolic, and glycemic parameters were recorded. The CGM-based calculations included GRI, with its hypoglycemia component (CHypo) and hyperglycemia component (CHyper). The DTR-QOL was measured to evaluate therapy-related quality of life (QoL).

Results:

During Ramadan, GRI significantly decreased (median = 30.5) compared to before (35.2) and after (37.4; P < .001), indicating improved glycemic stability. Both CHypo and CHyper were significantly reduced during fasting. The %TIR70-180 increased from 42% before to 66% during (P < .001), accompanied by a notable decrease in glycemic variability. The DTR-QOL scores were high across all domains, reflecting a positive therapy-related QoL (scale score: 78.3 [interquartile range = 75.4-81.3]). No significant differences were observed across GRI zones.

Conclusions:

With tailored education and CGM-based monitoring, Ramadan fasting can improve glycemia in individuals with T2D, enhancing GRI and related glycometric parameters for safer, more stable glycemic patterns.

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References

1. Sakr AH. Fasting in Islam. J Am Diet Assoc. 1975;67(1):17-21.
2. Patterson RE, Laughlin GA, LaCroix AZ, et al. Intermittent fasting and human metabolic health. J Acad Nutr Diet. 2015;115(8):1203-1212.
3. Salti I, Bénard E, Detournay B, et al. A population-based study of diabetes and its characteristics during the fasting month of Ramadan in 13 countries: results of the epidemiology of diabetes and Ramadan 1422/2001 (EPIDIAR) study. Diabetes Care. 2004;27(10):2306-2311.
4. Norouzy A, Mohajeri SM, Shakeri S, et al. Effect of Ramadan fasting on glycemic control in patients with type 2 diabetes. J Endocrinol Invest. 2012;35(8):766-771.
5. Ochani RK, Shaikh A, Batra S, et al. Diabetes among Muslims during Ramadan: a narrative review. World J Clin Cases. 2023;11(26):6031-6039.
6. Hassanein MM, Hanif W, Malek R, Jabbar A. Changes in fasting patterns during Ramadan, and associated clinical outcomes in adults with type 2 diabetes: a narrative review of epidemiological studies over the last 20 years. Diabetes Res Clin Pract. 2021;172:108584.
7. Tahapary DL, Astrella C, Kristanti M, Harbuwono DS, Soewondo P. The impact of Ramadan fasting on metabolic profile among type 2 diabetes mellitus patients: a meta-analysis. Diabetes Metab Syndr. 2020;14(5):1559-1570.
8. Dabbous Z, Bashir M, Elzouki AN, et al. Differential effects of gender and patient background diversity on the changes in metabolic and biophysical profiles in people with type-2 diabetes from different ethnicities who fast during Ramadan (H1439). a prospective study from Qatar. Diabetes Res Clin Pract. 2019;152:171-176.
9. Gad H, Al-Muhannadi H, Purra H, et al. The effect of Ramadan focused education on patients with type 2 diabetes: a systematic review and meta-analysis. Diabetes Res Clin Pract. 2020;162:108122.
10. Shao Y, Lim GJ, Chua CL, et al. The effect of Ramadan fasting and continuing sodium-glucose co-transporter-2 (SGLT2) inhibitor use on ketonemia, blood pressure and renal function in Muslim patients with type 2 diabetes. Diabetes Res Clin Pract. 2018;142:85-91.
11. Yeoh EC, Zainudin SB, Loh WN, et al. Fasting during Ramadan and associated changes in glycaemia, caloric intake and body composition with gender differences in Singapore. Ann Acad Med Singap. 2015;44(6):202-206.
12. El Toony LF, Hamad DA, Omar OM. Outcome of focused pre-Ramadan education on metabolic and glycaemic parameters in patients with type 2 diabetes mellitus. Diabetes Metab Syndr. 2018;12(5):761-767.
13. Battelino T, Alexander CM, Amiel SA, et al. Continuous glucose monitoring and metrics for clinical trials: an international consensus statement. Lancet Diabetes Endocrinol. 2023;11(1):42-57.
14. Martinez M, Santamarina J, Pavesi A, Musso C, Umpierrez GE. Glycemic variability and cardiovascular disease in patients with type 2 diabetes. BMJ Open Diabetes Res Care. 2021;9(1):e002032.
15. Tian T, Aaron RE, Yeung AM, et al. Use of continuous glucose monitors in the hospital: the diabetes technology society hospital meeting report 2023. J Diabetes Sci Technol. 2023;17(5):1392-1418.
16. Piona C, Marigliano M, Roncarà C, et al. Glycemia risk index as a novel metric to evaluate the safety of glycemic control in children and adolescents with type 1 diabetes: an observational, multicenter, real-life cohort study. Diabetes Technol Ther. 2023;25(7):507-512.
17. Klonoff DC, Wang J, Rodbard D, et al. A glycemia risk index (GRI) of hypoglycemia and hyperglycemia for continuous glucose monitoring validated by clinician ratings. J Diabetes Sci Technol. 2023;17(5):1226-1242.
18. Díaz-Soto G, Bahíllo-Curieses MP, Jimenez R, et al. The relationship between glycosylated hemoglobin, time-in-range and glycemic variability in type 1 diabetes patients under flash glucose monitoring. Endocrinol Diabetes Nutr (Engl Ed). 2021;68(7):465-471.
19. Deeb A, Al Qahtani N, Akle M, et al. Attitude, complications, ability of fasting and glycemic control in fasting Ramadan by children and adolescents with type 1 diabetes mellitus. Diabetes Res Clin Pract. 2017;126:10-15.
20. Kim JY, Yoo JH, Kim JH. Comparison of glycemia risk index with time in range for assessing glycemic quality. Diabetes Technol Ther. 2023;25(12):883-892.
21. Pérez-López P, Férnandez-Velasco P, Bahillo-Curieses P, de Luis D, Díaz-Soto G. Impact of glucose variability on the assessment of the glycemia risk index (GRI) and classic glycemic metrics. Endocrine. 2023;82(3):560-568.
22. von Elm E, Altman DG, Egger M, et al. The strengthening the reporting of observational studies in epidemiology (STROBE) statement: guidelines for reporting observational studies. Int J Surg. 2014; 12(12):1495-1499.
23. JAVA. Declaration of Helsinki world medical association declaration of Helsinki. Bull World Health Organ. 2013;79(4):373-374.
24. Hassanein M, Afandi B, Yakoob Ahmedani M, et al. Diabetes and Ramadan: practical guidelines. Diabetes Res Clin Pract. 2022;185:109185.
25. Hassanein M, Al-Arouj M, Hamdy O, et al. Diabetes and Ramadan: practical guidelines. Diabetes Res Clin Pract. 2017;126:303-316.
26. Shamsi N, Naser J, Humaidan H, et al. Verification of 2021 IDF-DAR risk assessment tool for fasting Ramadan in patients with diabetes attending primary health care in The Kingdom of Bahrain: the DAR-BAH study. Diabetes Res Clin Pract. 2024;211:111661.
27. Bajaj HS, Abouhassan T, Ahsan MR, et al. Diabetes Canada position statement for people with types 1 and 2 diabetes who fast during Ramadan. Can J Diabetes. 2019;43(1):3-12.
28. Shah VN, Sakamoto C, Pyle L. Optimal sampling duration for continuous glucose monitoring for the estimation of glycemia risk index. Diabetes Technol Ther. 2023;25(2):140-142.
29. Alshadfan H, Mirghani H, Alrasheed T, et al. Validation of the Arabic version of the diabetes therapy-related quality of life questionnaire (DTR-QOL) in Tabuk, Saudi Arabia: a pilot study. Cureus. 2024;16(9):e69805.
30. Ishii H. Development and psychometric validation of the diabetes therapy-related QOL (DTR-QOL) questionnaire. J Med Econ. 2012;15(3):556-563.
31. Panfil K, Vandervelden CA, Lockee B, Tallon EM, Williams DD, Lee JM. The glycemia risk index predicts performance of diabetes self-management habits in youth with type 1 diabetes mellitus. J Diabetes Sci Technol. 2024;18(4):779-786.
32. Cai L, Shen W, Li J, et al. Association between glycemia risk index and arterial stiffness in type 2 diabetes. J Diabetes Investig. 2024;15(5):614-622.
33. Tang Y, Zhang P, Li L, Li J. Diabetic peripheral neuropathy and glycemia risk index in type 2 diabetes: a cross-sectional study. Diabetes Metab Syndr Obes. 2024;17:4191-4198.
34. Wang Y, Lu J, Ni J, et al. 956-P: association between glycemia risk index (GRI) and diabetic retinopathy in type 2 diabetes—a prospective cohort study. Diabetes. 2023;72(suppl 1):956-P.
35. Sharif S, Visseren FLJ, Spiering W, et al. Arterial stiffness as a risk factor for cardiovascular events and all-cause mortality in people with type 2 diabetes. Diabet Med. 2019;36(9):1125-1132.
36. Carmichael J, Fadavi H, Ishibashi F, et al. Advances in screening, early diagnosis, and accurate staging of diabetic neuropathy. In: Diabetic Neuropathy. Amsterdam, Netherlands: Elsevier; 2022:47-78.
37. Carmichael J, Fadavi H, Ishibashi F, Shore AC, Tavakoli M. Advances in screening, early diagnosis and accurate staging of diabetic neuropathy. Front Endocrinol (Lausanne). 2021;12:671257.
38. Zhang X, Xu X, Jiao X, Wu J, Zhou S, Lv X. The effects of glucose fluctuation on the severity of coronary artery disease in type 2 diabetes mellitus. J Diabetes Res. 2013;2013:576916.
39. Wang Y, Lu J, Ni J, et al. Association between glycaemia risk index (GRI) and diabetic retinopathy in type 2 diabetes: a cohort study. Diabetes Obes Metab. 2023;25(9):2457-2463.
40. Kropp M, Golubnitschaja O, Mazurakova A, et al. Diabetic retinopathy as the leading cause of blindness and early predictor of cascading complications—risks and mitigation. EPMA J. 2023;14(1):21-42.
41. Aydin N, Kul S, Karadağ G, Tabur S, Araz M. Effect of Ramadan fasting on glycaemic parameters & body mass index in type II diabetic patients: a meta-analysis. Indian J Med Res. 2019;150(6):546-556.
42. Gad H, Al-Nassr N, Mohammed I, et al. Effect of Ramadan fasting in patients with type 2 diabetes mellitus treated with sodium–glucose cotransporter 2 inhibitors: a systematic review and meta-analysis. J Diabetes Investig. 2022;13(5):822-829.
43. Elmajnoun HK, Faris ME, Abdelrahim DN, Haris PI, Abu-Median AB. Effects of Ramadan fasting on glycaemic control among patients with type 2 diabetes: systematic review and meta-analysis of observational studies. Diabetes Ther. 2023;14(3):479-496.
44. Abdelrahim D, Faris ME, Hassanein M, et al. Impact of Ramadan diurnal intermittent fasting on hypoglycemic events in patients with type 2 diabetes: a systematic review of randomized controlled trials and observational studies. Front Endocrinol (Lausanne). 2021;12:624423.
45. Altaher AM, Zabut BM. Effect of Ramadan fasting on anthropometric measures and some biochemical parameters among type 2 diabetic patients in Gaza Governorate, Gaza Strip. IUG J Nat Eng Stud. 2013;21(1):25-40.
46. Shaikh S, Latheef A, Razi SM, et al. Diabetes management during Ramadan. Endotext. South Dartmouth, MA: MDText.com, Inc; 2000.
47. Osman Mahgoub A, Abdelgadir E. The association between health-related quality of life and Ramadan fasting in diabetic patients: a survey using a structured D-39 assessment tool. a Sudanese cohort. J Fasting Health. 2017;5(1):24-30.
48. Tourkmani AM, Hassali MA, Alharbi TJ, et al. Impact of Ramadan focused education program on hypoglycemic risk and metabolic control for patients with type 2 diabetes. Patient Prefer Adherence. 2016;10:1709-1717.
49. Yusof BNM, Zukiman WZHHW, Zaid ZA, et al. Comparison of structured nutrition therapy for Ramadan with standard care in type 2 diabetes patients. Nutrients. 2020;12(3):813.
50. Alwan I, Alsalamah S, Albaiahy A, et al. Parents&apos. perceptions of quality of life of their children and adolescents with type 1 diabetes during Ramadan fasting in Riyadh. Sudan J Paediatr. 2022;22(2):138-146.
51. Xu F, Zhao LH, Su JB, et al. The relationship between glycemic variability and diabetic peripheral neuropathy in type 2 diabetes with well-controlled HbA1c. Diabetol Metab Syndr. 2014;6(1):139.
52. Huang L, Pan Y, Zhou K, Liu H, Zhong S. Correlation between glycemic variability and diabetic complications: a narrative review. Int J Gen Med. 2023;16:3083-3094.
53. Oriot P, Klipper dit kurz N, Ponchon M, et al. Benefits and limitations of hypo/hyperglycemic alarms associated with continuous glucose monitoring in individuals with diabetes. Diabet Epidemiol Manag. 2023;9:100125.
54. Chehregosha H, Khamseh ME, Malek M, Hosseinpanah F, Ismail-Beigi F. A view beyond HbA1c: role of continuous glucose monitoring. Diabetes Ther. 2019;10(3):853-863.
55. Reddy N, Verma N, Dungan K. Monitoring technologies—continuous glucose monitoring, mobile technology, biomarkers of glycemic control. In: Endotext [Internet]. South Dartmouth, MA: MDText.com, Inc.; 2000:1-51.
56. Su JB, Zhao LH, Zhang XL, et al. HbA1c variability and diabetic peripheral neuropathy in type 2 diabetic patients. Cardiovasc Diabetol. 2018;17(1):47.
57. Hassanein M, Rashid F, Elsayed M, et al. Assessment of risk of fasting during Ramadan under optimal diabetes care, in high-risk patients with diabetes and coronary heart disease through the use of FreeStyle Libre flash continuous glucose monitor (FSL-CGMS). Diabetes Res Clin Pract. 2019;150:308-314.
58. Tong CV, Yow HY, Mohd Noor N, Hussein Z; DEARS (Diabetes Emergencies Around Ramadan Study) Study Group. Diabetes emergencies around Ramadan study (DEARS)—A multi-center study of diabetes emergencies admitted before, during and after Ramadan in Malaysia. Diabetes Res Clin Pract. 2021;175:108854.
59. Akram Z, Inayat M, Akhtar S, et al. Fasting influence on diabetic emergency visits in a tertiary care hospital throughout Ramadan and other lunar months. Pak J Med Health Sci. 2023;17(3):588-590.
60. Chowdhury A, Khan H, Lasker SS, Chowdhury TA. Fasting outcomes in people with diabetes and chronic kidney disease in East London during Ramadan 2018: the East London diabetes in Ramadan survey. Diabetes Res Clin Pract. 2019;152:166-170.
61. Elbarsha A, Elhemri M, Lawgaly SA, Rajab A, Almoghrabi B, Elmehdawia RR. Outcomes and hospital admission patterns in patients with diabetes during Ramadan versus a non-fasting period. Ann Saudi Med. 2018;38(5):344-351.

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Published In

Article first published online: February 28, 2025

Keywords

  1. diabetes mellitus
  2. type 2
  3. Ramadan fasting
  4. blood glucose monitoring
  5. continuous
  6. glycemia risk index
  7. quality of life

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© 2025 Diabetes Technology Society.
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PubMed: 40022432

Authors

Affiliations

Ayman Al Hayek, MSc, CDE
Department of Endocrinology and Diabetes, Diabetes Treatment Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
Wael M. Al Zahrani, MD
Department of Endocrinology and Diabetes, Diabetes Treatment Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
Mohammed A. Al Dawish, MD, FRCP, FACE
Department of Endocrinology and Diabetes, Diabetes Treatment Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia

Notes

Ayman Al Hayek, MSc, CDE, Department of Endocrinology and Diabetes, Diabetes Treatment Center, Prince Sultan Military Medical City, P.O. Box 7897, Riyadh, 11159, Saudi Arabia. Email: [email protected]

Author Contributions

AAH and MAAD contributed to the study’s conception and design. Material preparation, data collection, and analysis were performed by AAH, MAAD, and WMAZ. All authors contributed to the writing of the first draft of the manuscript. AAH revised the manuscript critically for important intellectual content. All authors approved the final version of the manuscript.

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