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Table 5 Kendall’s rank correlation (Kendall’s tau) between activity area measures and self-assessed score and timed mobility test results

From: Measuring the physical and economic impact of filarial lymphoedema in Chikwawa district, Malawi: a case-control study

   Minimum convex polygon activity area Kernel smoothing activity area
   Correlation (tau) 95% CI Correlation (tau) 95% CI
Disability score Cases −0.02 −0.592, 0.547 −0.15 −0.678, 0.360
Controls −0.05 −0.686, 0.594 −0.05 −0.530, 0.438
Mobility score Cases −0.04 −0.481, 0.391 −0.13 −0.666, 0.396
Controls 0.11 −0.355, 0.566 −0.11 −0.566, 0.355
10 m walking test (m/s) Cases 0.45 0.030, 0.869 0.58 0.193, 0.976
Controls 0.31 −0.163, 0.792 0.31 −0.235, 0.864
Timed up and go (m/s) Cases −0.42 −0.797, −0.048 −0.47 −0.933, −0.001
Controls −0.38 −0.767, 0.011 −0.38 −0.900, 0.145