Table 1.

Systematic review results and patient-level data available for meta-analysis.

Study	Country	Year	Enrollment window*	Spot frequency**	PPV	Number of patients+
Demchuk et al.17	Multicenter++	2012	< 6 hours	29%	61%	386
Wada et al.24	Canada	2007	< 3 hours	33%	77%	126
Goldstein et al.23	USA	2007	None	56%	24%	414
Li et al.19	China	2011	< 6 hours	22%	79%	139
Murai et al.32	Japan	1999	< 12 hours	21%	60%	24
Kim et al.22	USA	2008	None	18%	NR	56
Sorimachi et al.16	Japan	2013	< 24 hours	21%	NR	141
Rizos et al.14	Germany	2013	< 6 hours	27%	59%	57
Becker et al.33	USA	1999	None	46%	NR	NA
Park et al.21	Korea	2010	< 24 hours	17%	NR	NA
Wang et al.18	China	2011	< 3 hours	24%	83%	NA
Hallevi et al.20	USA	2010	< 4 hours	41%	100%	NA

^*Enrollment window refers to inclusion time windows of published studies.

^**Spot prevalence as reported in the initial publications.

⁺As some studies continued enrollment following publication, number of patients refers to the final number available for pooled analysis.

⁺⁺Participating centers were in Canada, Spain, Germany, USA, Poland and India.

PPV = positive predictive value; NR = not reported in primary publication; NA = patient-level data not available