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Table 3 Minimum absolute detectable differences for the change in glycosylated hemoglobin, systolic and diastolic blood pressure, and triglyceride for sample sizes of 366 and 320 correspondingly, 5% loss-to-follow-up rate with 80% power and 5% level of significance, for the Nepal Pioneer Worksite Intervention Trial

From: Nepal Pioneer Worksite Intervention Study to lower cardio-metabolic risk factors: design and protocol

  Minimum absolute detectable difference
N = 366 N = 320
Parameter Std. Dev. ρ=0.5 ρ=0.6 ρ=0.7 Independent samples
Glycated hemoglobin, % 0.38 0.06 0.05 0.045 0.12
Diastolic blood pressure, mmHg 9.43 1.4 1.3 1.1 3
Systolic blood pressure, mmHg 13.32 2 1.8 1.6 4.3
Triglycerides, mg/dL 82.47 12.5 11.2 9.7 26.6
  1. *Correlation between the changes of the same individual observed during control and treatment periods of time
  2. Standard deviations are calculated from the baseline data of the study participants