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Table 1 Calculations of the sample size (per group using a dominant model), required to detect different odds ratios in case-control analysis, assuming alpha = 0.003; power = 80% and ratio cases/controls = 1

From: Design and methods of the prevalence and pharmacogenomics of tenofovir nephrotoxicity in HIV-positive adults in south-western Nigeria study

Odds ratio Sample Size (N)
1.25 2531
1.50 760
1.75 398
2.00 260
2.25 191
2.50 150
2.75 124
3.00 106