Table 2.

Complete investigation rates across the contributing studies. The heterogeneity among studies was assessed by Chi-square test.

Study	Number of Cases	Complete Cardiac Investigation	Complete Vascular Investigation	Complete Cardiac and Vascular Investigation
1	684	40.9%	20.2%	4.8%
2	578	89.6%	75.3%	70.4%
3	840	71.8%	39.4%	30.1%
4	1,072	79.5%	98.5%	78.7%
5	331	98.8%	97.9%	96.7%
6	876	94.5%	79.3%	75.9%
7	598	58.2%	35.8%	21.9%
8	675	80.0%	79.4%	64.3%
9	1,088	64.0%	97.6%	61.7%
10	626	45.7%	13.9%	5.9%
11	642	81.2%	50.9%	43.3%
12	891	87.8%	68.2%	62.3%
13	470	57.7%	20.9%	13.0%
14	555	73.9%	42.9%	34.8%
15	643	95.2%	32.7%	30.6%
16	407	51.4%	40.8%	29.0%
17	1,085	78.6%	47.3%	37.4%
18	686	83.4%	92.7%	80.2%
19	554	58.3%	31.0%	19.0%
20	685	74.9%	92.3%	69.5%
21	524	93.9%	85.7%	80.5%
22	957	55.3%	31.2%	16.7%
23	1,487	85.3%	33.8%	29.1%
		p<0.001	p<0.001	p<0.001
Europe	9,360	68.8%	54.7%	39.7%
USA	7,594	81.6%	60.6%	53.1%
		p<0.001	p<0.001	p<0.001