Table 1.

Study Characteristic table.

Author	Year of study	Country	Study design	Total number of deliveries	Mean age (years)	Pregnant women with Heart disease
Abbasi et al. [9]	2017	Bangladesh	Cross sectional	N/A	N/A	51
Abhilashi et al. [10]	2018	India	Retrospective	N/A	N/A	41
Akhtar et al. [11]	2011	Bangladesh	Cross sectional	1054	N/A	54
Asghar et al. [12]	2005	Pakistan	Cross sectional	5100	N/A	50
Bhatla et al. [13]	2003	India	Retrospective	9365	25.66 ± 3.90	293
Chhetri et al. [14]	2014	Nepal	Prospective	9463	25 ± 5	53
Gore et al. [15]	2016	India	Cohort	N/A	N/A	390
Haider et al. [16]	2014	Pakistan	Cross sectional	N/A	N/A	29
Joshi et al. [17]	2015	India	Retrospective	N/A	N/A	42
Kaluarachchi et al. [18]	2020	Srilanka	Retrospective	26056	N/A	248
Kanwar et al. [19]	2018	India	Prospective observational	21000	25.33 ± 3.3	71
Khursheed et al. [20]	2015	India	Retrospective	N/A	N/A	132
Laxmikantha et al. [21]	2019	India	Cross sectional	2558	N/A	110
Mahalakshmi et al. [22]	2016	India	Retrospective	8072	N/A	62
Mohan et al. [23]	2020	India	Retrospective	23900	25	116
Parpillewar et al. [24]	2020	India	Cross sectional	11554	N/A	127
Patil et al. [25]	2014	India	Prospective	6404	N/A	60
Patne et al. [26]	2016	India	Prospective	8140	N/A	71
Rangaswamy et al. [27]	2016	India	Retrospective	31160	N/A	52
Salam et al. [28]	2017	India	Cross sectional	2093	N/A	90
Sen et al. [29]	2014	India	Prospective	N/A	N/A	40
Sharma et al. [30]	2018	India	Prospective observational	1301	N/A	35
Subbaiah et al. [31]	2013	India	Retrospective	2639	26.9 ± 4.09	100
Waheed et al. [32]	2012	Pakistan	Cross-sectional	N/A	N/A	52
Yasmeen et al. [33]	2011	Pakistan	Cross-sectional	7000	N/A	40

N/A = Not available.