The burden of antenatal heart disease in South Africa: a systematic review

Table 1 Characteristics of studies included in this review

Study ID (Year)	Location	Duration	Study design	n	Diagnosis type
Rush et al. [11]	Western Cape Province	5 yrs	R, C	697	NS
Schoon et al. [12]	Bloemfontein	5 yrs	R, T	164	X/E
Divanovic and Buchmann [13]	Johannesburg	2 mos	R, T	3191	X
Schoon [14]	Free State Province	2 yrs	P, C	42	X/E
Matlala [6]	Pretoria	3 yrs	R, T	95	E
Soma-Pillay et al. [10]	Pretoria	3 yrs	R, T	189	X/E
Nqayana et al. [15]	Durban	1 yrs	R, T	95	E

yrs years, mos months, R retrospective, C community-based, T based at tertiary hospital, P prospective, X physical examination diagnosis, E echocardiographic diagnosis, NS diagnostic method not specified. Diagnosis type refers to the techniques used to establish a final diagnosis in each patient. For example, in studies labeled X/E, either physical examination or echocardiography was permitted to establish a diagnosis

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