Table 1.

Influence of: sex, strain, and confirmation of the TAC on the level of heterogeneity in EDD and ESD

	EDD			ESD
	#	MD (mm)	[95%CI]	#	MD (mm)	[95%CI]
Sex	p = 0.41, adj. R2 = − 0.44%			p = 0.85 adj. R2 = − 3.38%
Female	13	0.26	− 0.02, 0.55	8	0.58	0.13, 1.04
Male	217	0.38	0.31, 0.45	179	0.53	0.43, 0.62
Mixed	36	0.35	0.18, 0.53	24	0.48	0.24, 0.73
Not reported	75	0.27	0.15, 0.39	59	0.45	0.29, 0.61
Mouse strain	p = 0.04, adj. R2 = 2.84%			p = 0.11 adj. R2 = 5.51%
129	15	0.14	− 0.12, 0.39	14	0.45	0.29, 0.61
Balb/c	2	− 0.23	− 1.05, 0.60	3	0.53	0.43, 0.62
C57BL/6	250	0.40	0.34, 0.47	194	0.53	0.43, 0.62
FVB	22	0.11	− 0.11, 0.32	15	0.58	0.13, 1.04
Mixed	7	0.10	− 0.33, 0.52	6	0.53	0.43, 0.62
Other	12	0.21	− 0.08, 0.50	12	0.53	0.43, 0.62
Swiss	3	− 0.03	− 0.61, 0.55	3	0.45	0.29, 0.61
Not reported	30	0.21	0.20, 0.58	23	0.45	0.29, 0.61
TAC confirmed	p = 0.63, adj. R2 = − 0.36%			p = 0.66 adj. R2 = − 1.52%
Echo/doppler	85	0.34	0.22, 0.45	63	0.51	0.35, 0.68
Invasive pressure	33	0.27	0.10, 0.45	29	0.40	0.17, 0.64
Not reported	223	0.37	0.30, 0.43	178	0.52	0.42, 0.62