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Table 1 General characteristics of the included studies

From: Preoperative bioelectrical impedance, measured phase angle, and hand-grip strength as predictors of postoperative outcomes in patients undergoing cardiac surgery: a systematic review

First author, pub. year

Study type

Country

No. of patients

Age, mean

Gender, male (%)

Surgery

Variable

Outcome measured

da Silva et al., 2018 [23]

Prospective

Brazil

50

62.8

64

Isolated valve replacement and/or CABG

PA and HGS

• ICU LOS

• Hospital LOS

Fountotos et al., 2021 [25]

Prospective

Canada

1245

74

70

Isolated valve replacement and/or CABG

HGS

• 1-year mortality

• 30-day mortality

• Prolonged length of stay defined by STS (≥ 14 days)

Mullie et al., 2018 [21]

Prospective

Canada

277

71

75

Isolated valve replacement and/or CABG

PA

• All‐cause mortality

• 30‐day mortality

• Composite major morbidity defined by the STS

• Hospital LOS

Panagidi et al., 2022 [26]

Prospective

Greece

195

67.18

76.9

Isolated valve replacement and/or CABG

Combined PA and HGS

• All-cause mortality

• ICU LOS

Ringaitiene et al., 2016 [27]

Prospective

Lithuania

342

65

65.8

Isolated valve replacement and/or CABG

PA

• Composite major morbidity defined by the STS

• ICU LOS

• Hospital LOS

Ryz et al., 2022 [28]

Prospective

Austria

168

65.9

66.1

Elective cardiac surgery

PA

• ICU LOS

Tsaousi et al., 2021 [29]

Prospective

Greece

179

67

77.6

Isolated valve replacement and/or CABG

PA and HGS

• In hospital LOS

Visser et al., 2012 [30]

Prospective

Netherlands

325

66.2

72.3

Isolated valve replacement and/or CABG

PA

• ICU LOS

• Hospital LOS

• Mortality

  1. PA Phase angle, HGS Handgrip strength, ICU Intensive care unit, LOS Length of stay, CABG Coronary artery bypass graft
  2. 30-day complications: Death, needing for reoperation, atrial fibrillation, deep sternal infection, pulmonary complications, stroke, sensory changes, renal failure requiring treatment, dehydration, multisystem organ failure, and readmission to the hospital within 30 days