First author [ref.] | Diagnosis | Subjects n | V′O2peak | Peak work | ||
Pearson’s r | Spearman’s rho | Pearson’s r | Spearman’s rho | |||
Wijkstra [30] | COPD | 40 | 0.81 | |||
Rejeski [17] | COPD | 209 | 0.64 | |||
Chuang [31] | COPD | 27 | 0.40 | |||
Oga [32] | COPD | 36 | 0.64 | 0.64 | ||
Carter [33] | COPD | 124 | 0.54 | 0.59 | ||
Satake [34] | COPD | 12 | 0.64 | |||
Turner [35] | COPD | 20 | 0.73 | 0.83 | ||
Starobin [36] | COPD | 50 | 0.58 | |||
Hill [37] | COPD | 50 | 0.63 | 0.75 | ||
Luxton [38] | COPD | 22 | 0.63 | |||
Díaz [39] | COPD | 81 | 0.78 | |||
Kozu [11] | COPD | 45 | 0.80 | 0.80 | ||
Sillen [40] | COPD | 2906 | 0.67 | |||
Eaton [12] | IPF | 29 | 0.78 | |||
Kozu [11] | IPF | 35 | 0.80 | |||
Holland [41] | ILD | 14 | 0.93 | |||
Dale [42] | Asbestos-related pleural disease | 25 | 0.53 | 0.58 | ||
Miyamoto [43] | PAH | 27 | 0.70 | |||
Deboeck [44] | PAH | 20 | 0.48 | |||
Fowler [45] | EIPAH | 17 | 0.72 | |||
Baldi [46] | LAM | 40 | 0.55 | |||
Cahalin [5] | End-stage lung disease, pre transplant | 30 | 0.73 | |||
Ross [47] | Mixed chronic lung diseases, many pre transplant | 48 | 0.59 |
COPD: chronic obstructive pulmonary disease; IPF: idiopathic pulmonary fibrosis; ILD: interstitial lung disease; PAH: pulmonary arterial hypertension; EIPAH: exercise-induced PAH; LAM: lymphangioleiomyomatosis.