Table 2.

Meta-analysis findings of age and strain analyses.

	Variable	SMD [CI95 %]	P value	k	I2
1	Age	0.16 [−0.13,0.44]	0.277	13	0.71
2	RV GLS	1.31 [0.79, 1.83]	<0.001	9	0.86
3	RV GCS	0.88 [0.34, 1.42]	0.001	4	0.78
4	RV GRS	−1.14 [−1.78, −0.51]	<0.001	4	0.84
4	RV Longitudinal Basal Strain	0.95 [0.72, 1.18]	<0.001	5	0.00
5	RV Longitudinal Mid-wall Strain	0.82 [0.48, 1.16]	<0.001	4	0.43
6	RV Longitudinal apical Strain	0.43 [−0.05, 0.90]	0.077	4	0.71
7	RV Circumferential Basal Strain	1.09 [0.78, 1.41]	<0.001	4	0.00
8	RV Circumferential Mid-wall Strain	0.93 [0.55, 1.31]	<0.001	3	0.00
9	RV Circumferential Apical Strain	0.18 [−0.17, 0.54]	0.312	3	0.00
10	RV Radial Basal Strain	−0.97 [−1.45, −0.49]	<0.001	3	0.38
11	RV Radial Mid-wall Strain	−0.64 [−1.34, 0.06]	0.075	3	0.69
12	RV Radial Apical Strain	−0.09 [−0.45, 0.27]	0.634	3	0.00
13	LV GLS	0.88 [0.48, 1.28]	<0.001	6	0.70
14	LV GCS	0.97 [0.72, 1.22]	<0.001	6	0.37
15	LV GRS	−1.24 [−1.49, −1.00]	<0.001	4	0.00
16	LV Circumferential Basal Strain	0.85 [0.55, 1.15]	<0.001	3	0.00
17	LV Circumferential Mid-wall Strain	0.60 [0.30, 0.90]	<0.001	3	0.00
18	LV Circumferential Apical Strain	0.49 [0.20, 0.79]	0.001	3	0.00

CI: Confidence Interval, GCS: Global Circumferential Strain, GLS: Global Longitudinal Strain, GRS: Global Radial Strain, LV: Left Ventricle, RV: Right Ventricle, SMD: Standardized Mean Difference.