Association between serum immunoglobulin G4 concentration and cardiac function among elderly cardiology inpatients

Abstract
Aim To study whether there is an association between serum immunoglobulin G4 (IgG4) concentration and cardiac function among cardiology inpatients. Methods This retrospective study included 91 patients who had sinus rhythm. Of 91 patients, 70 patients (77%) were aged ≥60 years (elderly group) and the remaining 21 patients (23%) were aged P = 0.030 and −0.22 (95% confidence interval −0.44 to −0.11, P = 0.043), respectively. Conclusion Serum IgG4 concentration might be associated with cardiac diastolic function among elderly cardiology inpatients. Geriatr Gerontol Int 2014; 14: 582–588.