Table 2 : Paired analysis of metabolic measure differences between urban and rural siblings.


Measure Wilcoxon signed-rank test statistics. Rural to
urban comparisons

  Lucknow Hyderabad

Fasting glucose n = 91 n = 91
(mmol/L) z = 3.838 z = 1.598
  p = 0.124e-03 p = 0.110
  diff = 0.30 (-0.11-1.00) diff = 0.11 (-0.22-0.50)
Fasting insulin n = 90 n = 91
(mU/L) z = 4.535 z = 2.767
  p = 5.765e-06 p = 0.006
  diff = 2.35(-0.40-5.10) diff = 1.00(-1.30-4.30)
HOMA-IR n = 71 n = 71
  z = 4.332 z = 2.659
  p = 0.0148e-03 p = 0.008
  diff = 0.60(-0.18-1.15) diff = 0.28(-0.25-1.03)
BMI n = 91 n = 91
(Kg/m2) z = 6.345 z = 4.908
  p = 2.231e-10 p = 9.210e-07
  diff = 4.04(0.64-7.18) diff = 1.94(-0.20-5.44)
Total cholesterol n = 90 n = 91
(mmol/L) z = 1.722 z = 0.267
  p = 0.085 p = 0.789
  diff = 0.23(-0.78-1.27) diff = -0.05(-0.67-0.72)
LDL n = 89 n = 90
(mmol/L) z = 1.471 z = -0.026
  p = 0.141 p = 0.979
  diff = 0.22(-0.67-1.22) diff = 0.05 (-0.75-0.60)
HDL n = 90 n = 91
(mmol/L) z = -0.656 z = 1.558
  p = 0.512 p = 0.119
  diff = -0.01(-0.18-0.18) diff = 0.05(-0.10-0.21)
Triglycerides n = 90 n = 91
(mmol/L) z = 2.438 z = 1.181
  p = 0.015 p = 0.237
  diff = 0.31(-0.32-0.86) diff = 0.09(-0.27-0.41)

Table shows the number of pairs of samples in each test (n), the test statistic (z) and unadjusted (p) value for each test. Difference (diff) is the median (IQR) of the differences between pairs of samples for each metabolic measure where rural dwellers are the reference group.

R. Elliott et al.Journal of Diabetes Research and Clinical Metabolism  2013 2:6DOI : 10.7243/2050-0866-2-6