Table 1

Sample size calculation for risk factors of GDM in Goba town, Southeast Ethiopia, 2021

Exposure variablesProportion in non-exposedProportion in the exposedPower of the studyCrude ORSample sizeTotal sample size after considering 15% loss to follow-up
History of stillbirth145.17%14%802.97417480
History of abortion1516.3%45.5%804.2101116
History of GDM271.8%12%807.4236271

  • GDM, gestational diabetes mellitus.