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Table 4 Parameters of left ventricular segmental WI according to sex

From: Echocardiographic reference ranges for noninvasive left ventricular 18-segment myocardial work index and work efficiency in a healthy Asian population

 

Men, mean ± SD

Men, 95% CI

Women, mean ± SD

Women, 95% CI

P-value*

Anteroseptal WI (mmHg%)

 Basal

1378 ± 313

765–1991

1497 ± 325

807–2187

 < 0.001

 Middle

1716 ± 332

1065–2367

1828 ± 346

1150–2506

0.001

 Apical

1857 ± 395

1083–2631

1841 ± 389

1079–2603

0.677

Septal WI (mmHg%)

 Basal

1446 ± 327

805–2087

1586 ± 341

918–2254

 < 0.001

 Middle

1694 ± 343

1022–2366

1859 ± 316

1240–2478

 < 0.001

 Apical

2063 ± 359

1359–2767

2182 ± 386

1039–3325

0.001

Inferior WI (mmHg%)

 Basal

1723 ± 424

892–2554

1883 ± 438

1025–2741

 < 0.001

 Middle

1742 ± 377

1003–2481

1835 ± 360

1129–2541

0.011

 Apical

2047 ± 403

1257–2837

2114 ± 414

889–3339

0.100

Posterior WI (mmHg%)

 Basal

1910 ± 384

1157–2663

2050 ± 352

1360–2740

 < 0.001

 Middle

1510 ± 335

853–2167

1739 ± 354

1045–2433

 < 0.001

 Apical

1757 ± 385

1002–2512

1830 ± 429

989–2671

0.069

Lateral WI (mmHg%)

 Basal

1738 ± 366

1021–2455

1979 ± 388

1289–2669

 < 0.001

 Middle

1454 ± 379

711–2197

1730 ± 375

995–2465

 < 0.001

 Apical

1628 ± 430

785–2471

1794 ± 452

908–2680

 < 0.001

Anterior WI (mmHg%)

 Basal

1575 ± 376

838–2312

1681 ± 414

870–2492

0.007

 Middle

1461 ± 355

765–2157

1606 ± 377

867–2345

 < 0.001

 Apical

1473 ± 370

748–2198

1623 ± 389

861–2385

 < 0.001

 Average WI of the anteroseptal wall (mmHg%)

1650 ± 242

1176–2124

1722 ± 253

1226–2218

0.004

 Average WI of the septal wall (mmHg%)

1734 ± 271

1203–2265

1876 ± 276

1335–2417

 < 0.001

 Average WI of the inferior wall (mmHg%)

1838 ± 311

1228–2448

1944 ± 323

1311–2577

0.001

 Average WI of the posterior wall (mmHg%)

1726 ± 268

1201–2251

1873 ± 286

1312–2434

 < 0.001

 Average WI of the lateral wall (mmHg%)

1607 ± 299

1021–2193

1834 ± 307

1232–2436

 < 0.001

 Average WI of the anterior wall (mmHg%)

1503 ± 269

976–2030

1636 ± 294

1060–2212

 < 0.001

 Average WI of the basal level (mmHg%)

1628 ± 237

1163–2093

1779 ± 249

1291–2267

 < 0.001

 Average WI of the middle level (mmHg%)

1596 ± 246

1114–2078

1766 ± 253

1270–2262

 < 0.001

 Average WI of the apical level (mmHg%)

1804 ± 267

1281–2327

1897 ± 290

1329–2465

0.001

  1. CI confidence interval, SD standard deviation; WI, work index. *P-value refers to sex differences