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Table 4 Measured and predicted 6MWD for the same age range from the equations derived in previous studies

From: Six-minute walking distance in healthy Chinese people older than 60 years

EquationMeasured 6MWD (m)Predicted 6MWD (m)Predicted-Measured(m)
Jenkins et al.502 ± 73569 ± 4467 ± 60*
Iwama et al.504 ± 73520 ± 3316 ± 68*
Poh et al.502 ± 73490 ± 60−12 ± 64*
Fernandes et al.526 ± 64433 ± 24−93 ± 61*
Osses et al.511 ± 72563 ± 3953 ± 62*
Troosters et al.511 ± 72540 ± 6230 ± 64*
  1. *p < 0.05 using Student’s t-test
  2. 6MWD Six-minute walking distance