14	Lynch et al., 2012 .	Cross-sectional	201 patients of an indigent clinic of an academic medical center.	Depression-CES-D	DSES	Significant inverse relationship between spirituality and depression.
15	Jafari et al., 2014 .	Cross-sectional	223 patients.	Patient Health Questionnaire-2 (PHQ-2).	Chronic Illness Therapy-Spiritual Well-Being (FACIT-Sp) Scale.	The results of this study showed poor QOL and spiritual well-being and high prevalence of depression in Iranian patients with type 2 diabetes.
16	Gupta & Anandarajah, 2014 .	Qualitative	18 patients, all with type 2 diabetes mellitus.	Focus-group participants. Hope questions for spiritual assessment.		In general, participants thought of spirituality more as a source of strength than as a specific motivator for diabetes self-management.
17	Pitaloka & Hsieh, 2015 .	Qualitative	30 women with type 2 diabetes.	Focus group participants.		Through the performance of submission, participants demonstrated spirituality and religiosity as essential elements of health.
18	Rivera-Hernandez, 2015 .	Qualitative	10 male Mexican religious leaders.	Qualitative semi-structured key-informant interviews.		Religious leaders can support the health promotion of elderly people with diabetes.
19	Namageyo-Funa, Muilenburg, & Wilson, 2015 .	Qualitative	12 diabetic Black men.	In-depth interviews. Semi-structured interviews.		Religion and spirituality as a coping strategy for diabetes management. These coping strategies are: prayer and faith in God, the reading of the Bible and the help of religious or spiritual people.
20	Amadi et al., 2015 .	Cross-sectional	112 participants with diabetes and depression.	Brief RCOPE, Mental Adjustment to Cancer Scale (MAC), Disability Scale (SDS), Sheehan’s Disability Scale (SDS), Becks Depression Inventory-II (BDI-II).	ROS-R	High intrinsic and extrinsic religiosities are associated with better treatment outcome in both diabetes mellitus and depression.
21	Spruill, Magwood, Nemeth, &Williams, 2015 .	Qualitative	52 participants, most were female and all Gullah and/or African Americans.	Interviews		Spirituality is a multidimensional cultural resource and coping strategy for African Americans diabetics.
22	Rivera-Hernandez, 2016 .	Cross-sectional	364 diabetic Mexican older adults.	A questionnaire that included several variables, such as socio demographic data, health, religion, health care, social support, housing, income, assets and pensions.		Religion has a positive correlation with the care, control of diabetes and the behavior of self-care.
23	Amadi et al., 2016 .	Cross-sectional	112 participants with diabetes mellitus.	Sociodemographic Questionnaire.	Religious Orientation Scale (ROS), Religious Orientation Scale-Revised (ROS-R) or Intrinsic/ Extrinsic-revised (I/E-R), Brief Religious Coping Scale (Brief RCOPE).	Religion is a reliable coping method, which is commonly used by the elderly and depressed women. Positive religious coping is more common among diabetic who are in the low occupational status.
24	Berardi et al., 2016 .	Cross-sectional	183 Jewish adults with severe diabetes.	Self-administered questionnaires assessed diabetes management behaviors and demographic/personal characteristics, HbA1c laboratory tests.	Fatalism Diabetes Scale (DFS), Self-reported religiosity.	Addressing fatalistic attitudes may be a viable strategy for improving diabetes management, but call for a better understanding of the interplay between religiosity and fatalism in this context
25	Yazla et al., 2017 .	Cohort study	100 patients diagnosed with type 2 diabetes mellitus	Problem Areas in Diabetes Scale (PAID), Beck Depression Inventory (BDI), State-Trait Anxiety Inventory (STAI), Audit of Diabetes-Dependent Quality of Life (ADDQoL), blood glucose and HbA1c test results.	Scale of Forgiveness and Religiosity (SFR).	Forgiveness by patient himself or others reduced the emotional problems which were experienced related to diabetes by reducing stress levels and could increase QOL.
26	Heidari, Rezaei, Sajadi, Ajorpaz, & Koenig, 2017 .	Cross-sectional	154 Iranian diabetic patients.	Demographic questionnaire, diabetes self-care activities questionnaires.	Private and public religious practices.	A relationship between religious practices and self-care in diabetic patients.