Table 1

- The general characteristics, the estimated prevalence of pre-HTN, HTN, awareness, treatment and control rates of HTN in the included studies.

sn	Author, year	Data collection year	Sample size	Male-female ratio	Mean±SD
	National community studies
1	Osman & Al Nozha,³¹ 2000	1989-1994	6253	42.7%-57.4%	18+
2	Al-Nozha et al,³² 2007	1995-2000	17230	47.7%-52.3%	30-70
3	Saeed et al,³³ 2011	2005	4758	49.2%-50.8%	15–64
4	Khoja et al,³⁴ 2018	2006-2007	2946	50.4%-49.6%	60+ (70.1±0.3)
5	El Bcheraoui et al,³⁵ 2014	2013	10735	48.9%-51.1%	15+
6	Al-Daghri et al,³⁶ 2011	2011	6630	45.1%-54.9%	18-80
	Regional community studies
7	Abolfotouh et al,³⁷ 1996	NR	1739	50.8%-49.2%	30+
8	Al-Baghli et al,³⁸ 2009	2004	197681	NR	30+
9	Elkhalifa et al,³⁹ 2011	2008	243	46.1%-53.9%	30+
10	Alsuwaida & Alghonaim,⁴⁰ 2011	2008	814	49.1%-50.9%	(18+) 35.8±11.5
11	Gutierrez et al,⁴¹ 2018	2016	432	54.4%-45.6%	18+
12	Saquib et al,⁴² 2017	2015-2016	400	all male	55+ (63±7.5)
13	Mirza A,⁴³ 2016	2012	770 relatives of medical students	63.6%-36.4%	≥30
14	Ahmed H,⁴⁴ 2014	2012-2013	2800	43.8%-56.2%	14 to 100 (Mean 45)
15	Alkahtani SA,⁴⁵ 2016	2014	915	all male employees	20–64
16	Alyabsi M,⁴⁶ 2020	2017-2020	10 799	66.3%-33.7%	18+ (33.27±10.73)
17	Al-Mohaissen M,⁴⁷ 2020	2016	518	all female college students	17–29 (20.5±1.8)
18	Alanazi AM,⁴⁸ 2018	2017	232	medical students 58.6%-41.4%	NR
19	Baig M,⁴⁹ 2015	2014	610	male students	Mean 22.40±3.90
20	Madkhali A,⁵⁰ 2022	2018-2019	423 secondary schools students	48.7%-51.3%	15–19 (17.1±0.9)
21	Rehmani R,⁵¹ 2013	2010	1339	57.4%-42.6%	14+ (30.7±12.7)
	Primary health care studies for awareness and control
22	Elzubier & Al-Shahri,⁵² 1997	1996	311	35.7%-64.3%	53.2±0.65
23	Al-Tuwijri & Al-Rukban,⁵³ 2006	2001	255	47.5%-52.5%	57.2±11.1
24	Al-Rukban et al,⁵⁴ 2007	2004	201	21.4%-78.6%	58.3+12.5
25	Safar et al,⁵⁵ 2014	2010	15,942	45.0%-55.0%	63±10
26	AlQuaiz et al,⁵⁶ 2021	2015-2016	2997	32.3%-67.7%	30–75 (43.1±11.7)
27	Kalantan et al,⁵⁷ 2001	NR	1114	40.0%-60.0%	35–85 (47.7±10.7)
28	Al-Qahtani,⁵⁸ 2018	NR	382	51.8%-48.2%	18+ (62.71±14.16)
	Hospital affiliated outpatients
29	Ahmed & El-Awad,⁵⁹ 2001	1994-1996	203	53.0%-47.0%	18–75 (46.9±12.6)
	Total		278873

HTN: hypertension, SD: standard deviation, NR: not reported, sn: study number