A systematic review of the efficiency of recruitment to stroke rehabilitation randomised controlled trials

Table 7 Trial and recruitment characteristics that significantly affected dropout for included stroke rehabilitation RCTs

		Trial feature	Kruskal-Wallis	P	RCTs	Subgrouping (medians)
Dropout	Trial characteristic	Publication date	X²(1) = 10.73	0.001	414	2009 or before (3%)*
		Publication date	X²(1) = 10.73	0.001	414	2010 or after (9%)
		Trial size	X²(4) = 25.38	< 0.001	414	21 or fewer (0%)*
						22–34 participants (7%)
						35–60 participants (8%)
						61–99 participants (8%)
						100 ore more (8%)
	Recruitment characteristic	Continent of recruitment	X²(2) = 11.91	0.003	354	Europe (7%)
						Asia (2%)
						North America (8%)
		Recruitment Strategy	X²(2) = 6.09	0.048	205	Screening stroke survivors in the community (9%)
						Screening admissions (8%)
						Screening inpatients (3%)*

* Least dropout
Kruskal–Wallis = appropriate statistics for Kruskal–Wallis test, p = significance level, RCTs = number of RCTs contributing to this finding

ISSN: 1745-6215