Table 4.

Summary table of included studies.

Authors (Date of publication)	Date of study	Sample size	Age	Type of diabetes	Sampling technique	Setting (urban / rural)	Method used	Incidence / prevalence per 100,000 or%		Overall per 100,000 or%
								Male	Female
Abduljabbar et al. [17]	1990–2007	438	<15 years	T1DMa	Not reported	Dhahran, Eastern KSA (urban)	Not mentioned	24.07	31.17	27.52
Al-Herbish et al. [20]	2001–2007	45, 682	0–19 years	T1DMa	Multi-stage stratified random sampling	Nationwide (rural & urban)	Self-report	56.9	52.6	109.5
Habeb et al. [18]	2004–2009	419	0–12 years	T1DMa	Not reported	Al-Madinah (urban)	Self-report	22.2	33.0	27.6
Al-Baghli et al. [23]	2004–2005	197, 681	≥30 years	T2DMb	Convenience sampling (approached participantsin their workplaces, major public places, malls and other venues)	Eastern Province (urban & rural)	FPGc CFBGd CCBGe &	15.9%	18.6%	18.2%
Al-Daghri et al. [19]	2011	9, 149	7–80 years	T2DMb	Cluster random sampling	Riyadh (Unknown)	FPGc	34.7%	28.6%	31.6%
Al-Nozha et al. [24]	1995–2000	16, 917	30–70 years	T2DMb	2 stage, stratified cluster sampling	Nationwide (urban & rural)	FPGc	26.2%	21.5	23.7%
Alqurashi et al. [22]	2009	6, 024	12–70 years	T2DMb	Convenience sampling (patients attending a primary care clinic)	Jeddah (King Fahad Armed Forces Hospital.)	Self-report	34.1%	27.6%	30.0%
Al-Rubeaan et al. (2015)	2007–2009	18, 034	≥30 years	T2DMb	Random sampling	Nationwide (urban & rural)	FPGc	29.1%	21.9%	25.4%
Al-Rubeaan [21]	2007–2009	23,523	0– ≥18 years	T1DMa/T2DMb	Multistage stratified cluster sampling	Nationwide (urban & rural)	FPGc	44.32% (T1DM) 47.06% (T2DM)	55.68% (T1DM) 52.94% (T2DM)	10.84%

^aType 1 Diabetes Mellitus.

^bType 2 Diabetes Mellitus.

^cFasting Plasma Glucose.

^dCapillary Fasting Blood Glucose.

^eCasual Capillary Blood Glucose.