Table 4: Prevalence hypertension among South African commercial taxi drivers compared with the literature.

Country	Design/ Sample Size	Mean Age (Years)	Percentage	Author
Abuja, Nigeria	Cross- sectional; 389	39.0 ±10.0	9.0%	Olusegun et al. [21],
Chittoor, India	Cross-sectional; 204	41.38 ±10.45	14.21%	Udayar et al. [14],
Bangalore, India	Cross- sectional; 500	-	16.0%	Satheesh et al. [22],
Iran	Cross-sectional;1903	41.55 ±10.43	16.4%	Izadi et al. [25],
South-South, Nigeria	Cross-sectional; 112	37.49 ±9.3	21.4%	Tobin et al. [19],
Sokoto, Nigeria	Cross-sectional; 213	47.48 ±10.18	33.5%	Erhiano et al. [20],
India	Cross-sectional; 587	46.9 ±6.69	34.8%	Borle et al. [43],
Brazil	Retrospective observational; 659	41.7 ±6.9	38.2%	Hirata et al. [13],
South India	Cross- sectional;179	36.5 ±8.4	41.3%	Lakshman et al. [10],
Iran	Cross- sectional; 429	36.6 ±10.7	42.9%	Saberi et al. [24],
South Brazil	Cross-sectional; 250	41.9 ±10.0	45.2%	Sangaleti et al. [26],
India	Cross-sectional comparative; 50	-	46.0%	Nayak et al. [23],
Korea	433	-	53.3%	Shin et al. [27],
Hong Kong	3376	50.9 ±7.6	57.0%	Siu et al. [28],
Taiwan	Cross-sectional; 1761	-	56.0%	Wang et al. [29],
South Africa	Cross-sectional; 403	43.3 ±12.5	57.0%	Present study.