Table 5 Mean difference (95%CIs) of the LVEDD and 6 MWT

WX + CAM

 − 14.26 (− 82.04, 53.52)

–

–

 − 0.85 (− 44.25, 42.55)

 − 7.15 (− 44.61, 30.32)

–

 − 6.20 (− 29.81, 17.41)

 − 51.58 (− 73.40, − 29.76)

 − 3.74 (− 11.33, 3.84)

SXBX + CAM

–

–

 − 13.41 (− 87.74, 60.92)

 − 7.12 (− 78.16, 63.92)

 − 8.06 (− 72.89, 56.77)

 − 37.32 (− 101.49, 26.85)

 − 5.54 (− 12.24, 1.16)

 − 1.80 (− 10.24, 6.64)

YXST + CAM

 − 

–

–

–

–

–

 − 6.39 (− 11.74, − 1.04)

 − 2.65 (− 10.05, 4.76)

 − 0.85 (− 7.35, 5.66)

GTTL + CAM

–

–

–

–

–

 − 6.64 (− 11.27, − 2.02)

 − 2.90 (− 9.81, 4.00)

 − 1.10 (− 7.02, 4.82)

 − 0.26 (− 4.59, 4.08)

TXL + CAM

 − 6.29 (− 54.62, 42.03)

 − 5.35 (− 43.97, 33.28)

 − 50.73 (− 88.24, − 13.22)

 − 6.74 (− 13.37, − 0.11)

 − 3.00 (− 11.38, 5.38)

 − 1.20 (− 8.79, 6.39)

 − 0.35 (− 6.78, 6.07)

 − 0.10 (− 5.94, 5.74)

YXSC + CAM

–

 − 0.95 (− 32.77, 30.88)

 − 44.44 (− 74.91, − 13.96)

 − 7.14 (− 16.41, 2.13)

 − 3.40 (− 13.99, 7.19)

 − 1.60 (− 11.58, 8.38)

 − 0.75 (− 9.88, 8.37)

 − 0.50 (− 9.22, 8.22)

 − 0.40 (− 10.33, 9.53)

QSYQ + CAM

–

–

 − 7.26 (− 11.33, − 3.19)

 − 3.52 (− 10.06, 3.03)

 − 1.72 (− 7.21, 3.78)

 − 0.87 (− 4.60, 2.86)

 − 0.62 (− 3.21, 1.98)

 − 0.52 (− 5.93, 4.89)

 − 0.12 (− 8.56, 8.32)

QLQX + CAM

 − 45.38 (− 54.59, − 36.17)

 − 11.74 (− 15.70, − 7.79)

 − 8.00 (− 14.47, − 1.53)

 − 6.20 (− 11.61, − 0.79)

 − 5.35 (− 8.96, − 1.75)

 − 5.10 (− 7.50, − 2.69)

 − 5.00 (− 10.32, 0.32)

 − 4.60 (− 12.99, 3.79)

 − 4.48 (− 5.44, − 3.52)

CAM