Exclusion criteria
Unconscious patients, Patients transferred to the intensive care unit post-C/S, Patients who lost neonate by any cause, and ASA>II.Sample size and sampling procedure
The sample size was determined by single population proportion formula with the following Zα/2=1.96, a 5% margin of error (d=0.05), and the proportion of the previous study done in Gondar Hospital was (72.2%) (25).
Ss=\(\frac{{(za)}^{2}p\left(1-p\right)}{d^{2}}\) where Zα is p=0.723, 1-p = q=0.277, d =0.05
n=\(\frac{{1.96}^{2}\left(0.723\right)(0.277)}{{0.05}^{2}}=307\)
So, the calculated sample size (307) and, adding for 10% possible nonresponse rate, resulting in a total sample size of 338 patients and all consecutive mothers who had undergone cesarean delivery were included in the study time.