Table 5.

General characteristics of included studies.

	Central region	East region	West region	Nationwide
Country regions	1 study	2 study	2 studies	4 studies
	Al-Daghri et al. [19]	Abduljabbar et al. [17], Al-Baghli et al. [23]	Habeb et al. [18], Alqurashi et al. [22]	Al-Herbish et al. [20], Al-Rubeaan [21], Al-Nozha et al. [24], Al-Rubeaan et al. [25]
Type of diabetes	Type 1 diabetes		Type 2 diabetes	Both types
	4 studies		6 studies	4 studies
	Abduljabbar et al. [17]		Al-Daghri et al. [19]	Al-Daghri et al. [19], Al-Rubeaan [21]
	Habeb et al. [18]		Al-Rubeaan [21]
	Al-Herbish et al. [20]		Alqurashi et al. [22]	Alqurashi et al. [22], Al-Nozha et al. [24]
	Al-Rubeaan [21]		Al-Baghli et al. [23]
			Al-Nozha et al. [24]
			Al-Rubeaan et al. [25]
Age groups	Children/ adolescent		Adult
	4 studies		6 studies
	Abduljabbar et al. [17]		Al-Daghri et al. [19]
	Habeb et al. [18]		Al-Rubeaan [21]
	Al-Herbish et al. [20]		Alqurashi et al. [22]
	Al-Rubeaan [21]		Al-Baghli et al. [23]
			Al-Nozha et al. [24]
			Al-Rubeaan et al. [25]
Research setting	Tertiary hospital	Primary healthcare center (PHCC)	Nursing home and households
	4 studies	3 studies	3 studies
	Abduljabbar et al. [17]	Al-Daghri et al. [19]	Al-Herbish et al. [20]
	Habeb et al. [18]	Al-Baghli et al. [23]	Al-Rubeaan [21]
	Alqurashi et al. [22]	Al-Nozha et al. [24]	Al-Rubeaan et al. [25]
	Al-Baghli et al. [23]