Foot Reflexology on Postpartum Sleep Qualıty

This study was a single-blinded, randomized controlled trial with a prospective pretest-posttest experimental design. This study was conducted between July 2016 and March 2017. Postpartum women were visited at their homes following vaginal birth in the obstetrics clinic of XXX State Hospital in Turkey.

To calculate the sample size, we utilized a 95% confidence interval, 80% power, and a 0.8 effect size. Accordingly, the sample size was determined to be 60 (30 control, 30 intervention) as calculated a priori with a t test using G Power package software. The study was completed with 54 women due to some of the women dropping-out of the study, with 24 women in the intervention group and 30 women in the control group. In this study, the simple randomization method (Statistical Analysis System Institute, Cary, North Carolina, version 8.2) was used to create an equal number of samples in both groups. Thus, participants were single-blinded to treatment allocation. Also the first researcher delivered the intervention and, therefore, could not be blinded to allocation. This study was used the CONSORT scheme.

A total of four reflexology sessions were applied in the afternoons every other day between postpartum days 14 through 20. Pretest data were collected on the 14th day and posttest data were collected on the 20th day. This pilot study revealed that no changes were required in the study method. The five women who participated in the pilot study were excluded from the study data.

The intervention group was comprised of 30 women in the early postpartum period. Pretest data were collected on the 14th day postpartum. Then a total of four reflexology sessions were applied for 15 minutes in each foot, in the afternoons, every other day between postpartum 14th-20th day, as the women were available. And posttest data were collected on the 20th day postpartum at the end of the four-reflexology sessions.

The control group of this study was comprised of 30 women in the early postpartum period who had sleep problem and gave vaginal birth. Pretest data were collected on the 14th day postpartum. On the 20th day postpartum, the posttest data were assessed during home visits. These women only received routine postpartum care from public health nurses but did not access the reflexology.

Data were collected by Personal Information Form and Postpartum Sleep Quality Scale. Data were evaluated using SPSS-17 software (Statistical Package for Social Sciences). Descriptive data were expressed as score means, standard deviations, and min-max values, and normal distribution was measured with kurtosis and skewness. The t test and Mann Whitney U test (z) were used to determine the significance of the differences between pretest and posttest sleep duration and quality in the control and intervention groups according to the hypotheses. Values of p < 0.05 were considered significant. Due to the dropouts in the intervention group, an Intention to Treat (ITT) analysis was performed. Mean method was used with the mean of the sample followed for missing data. The study data were presented along with the results of ITT analysis.

This study was approved by the Mersin University Ethical Committee of Clinical Research (approval number: 4/50, date: 23.02.2016) and by the Ethical Committee of Educational Unit of Mersin Public Hospitals Administration. All of the participants provided written informed voluntary consent. Participants were informed that their participation was voluntary, that they were free to quit the study without providing an excuse, that they could contact the researcher by phone as necessary, and that all of the collected data would be kept completely confidential and secured.