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Table 1 Sample and linear regression characteristics for all subjects contrasted by study.

From: The six minute walk test accurately estimates mean peak oxygen uptake

Study Sample Characteristics Linear Regression Statistics
  Disease n peak VO2 Mean ± SD 6 MWT Mean ± SD Slope Intercept R SEE (SEE/Mean) × 100
Cahalin 1996 (3) CHF 45 12.4 ± 4.5 310 ± 103 0.028 3.583 0.65 3.44 27.7
Cahalin 1995 (2) ESLD 60 9.6 ± 3.8 294 ± 139 0.019 4.042 0.69 2.81 29.2
Lucas 1999 (6) CHF 307 14.2 ± 4.9 391 ± 105 0.027 3.666 0.59 3.99 28.1
Miyamoto 2000 (7) PH 27 13.9 ± 4.4 377 ± 115 0.026 4.213 0.68 3.25 23.4
Opasich 2001 (8) CHF 269 14.5 ± 4.9 378 ± 95 0.027 4.498 0.59 3.42 23.6
Roul 1998 (9) CHF 114 16.8 ± 4.5 437 ± 108 0.009 12.910 0.21 4.43 26.4
Starobin 2006 (10) COPD 49 14.0 ± 4.4 436 ± 89 0.027 2.184 0.55 3.69 26.4
Zugck 2000 (11) DC 112 15.6 ± 5.2 463 ± 107 0.033 0.113 0.69 3.78 24.2
Faggiano 1997 (4) CHF 26 15.1 ± 3.9 419 ± 121 0.019 7.260 0.58 3.25 20.8
Lipkin 1986 (5) CHF 26 14.0 ± 4.1 452 ± 147 0.019 5.271 0.70 2.95 21.0
Baylor CPD 48 13.1 ± 3.4 354 ± 131 0.017 6.921 0.68 2.50 19.1
All Data All 1,083 14.3 ± 4.8 393 ± 115 0.025 4.682 0.59 3.82 26.7
  1. ESLD - End Stage Lung Disease; DC - Dilated Cardiomyopathy; CHF - Congestive Heart Failure; PH -Pulmonary Hypertension; COPD - Chronic Obstructive Pulmonary Disease; CPD - Various Cardiopulmonary Disorders. Peak VO2 - peak oxygen uptake (ml/kg/min.); 6 MWD- distance walked (meters) during the 6-minute walk test.