Table 2.

Meta-Regression Examining Influence of Variation in Proportion of Mitral Repair and Proportion of Degenerative Mitral Disease Between the Studies on Postoperative Outcomes.

Outcomes	Regression coefficient	95% CI	P value
Acute renal failure	Mitral repair: 0.05	−6.98 to 7.09	0.98
	Degenerative regurgitation: −3.99	−55.75 to 47.77	0.51
Prolonged intubation	Mitral repair: IS	—	—
	Degenerative regurgitation: IS	—	—
Blood transfusion	Mitral repair: 0.65	−3.23 to 4.53	0.28
	Degenerative regurgitation: IS	—	—
ICU length of stay	Mitral repair: IS	—	—
	Degenerative regurgitation: IS	—	—
Hospital length of stay	Mitral repair: −0.64	−8.98 to 7.70	0.77
	Degenerative regurgitation: 10.39	−91.06 to 70.29	0.35
Stroke	Mitral repair: 2.75	−6.67 to 12.17	0.34
	Degenerative regurgitation: 3.61	−10.42 to 17.64	0.38
Respiratory infection	Mitral repair: IS	—	—
	Degenerative regurgitation: IS	—	—
Postoperative AF	Mitral repair: 1.02	−6.57 to 8.61	0.34
	Degenerative regurgitation: 2.05	−12.91 to 17.01	0.33
Mortality	Mitral repair: IS	—	—
	Degenerative regurgitation: IS	—	—
Reoperation for bleeding	Mitral repair: IS	—	—
	Degenerative regurgitation: IS	—	—

Abbreviations: AF, atrial fibrillation; CI, confidence interval; ICU, intensive care unit; IS, insufficient studies.