Study design and period
A community-based cross-sectional study was conducted from March 1-15/2019 in Bichena town.
Study sitting
This study was conducted in Bichena town, which is located in the East Gojjam Zone of the Amhara Region, Ethiopia. The town has one public primary hospital and one health center, which provide maternal and other health services to the population of the town and the surrounding area [18].
Study participants
All MP whose wives gave birth within the last one year before the study and had ANC visits were included, while MP who were seriously ill were excluded.
Operational definitions
Male partner: Is an individual with whom the pregnant woman was in an intimate sexual relationship, and was responsible for her pregnancy whether they were legally married or not [19].
Male partner involvement in HTC: Refer to the MPI in both HIV counseling and testing during his wife's ANC visit [19].
Knowledge of MTCT: When MP knows at least one route of transmission of MTCT of HIV from three questions, considered as having knowledge of MTCT [19, 20].
Knowledge of PMTCT: When MP knows at least one PMTCT method from the three knowledge measuring items, considered to as having knowledge of PMTCT [19, 20].
Sample size determination and techniques
The sample size was calculated using a single population proportion formula by considering the following assumptions: the proportion of MPI in HTC at Gondar town was (40.1%) [19], Zα/2 = critical value for normal distribution at 95% confidence level, which is equal to 1.96 (Z value of alpha =0.05) or 5% level of significance (α=0.05) and a 5% margin of error (d =0.05). The sample size was adjusted by adding a 10% non-response rate and the final sample size was 406. The study participants were selected by using simple random sampling techniques.
Data collection tools and procedures
The data were collected using structured and pre-tested interviewer-administered questionnaires through face-to-face interviews. The data was collected by five-diploma midwives and supervised by two BSc midwives.
Data quality control
The data collectors and supervisors trained for two days on the objectives, relevance of the study, and techniques of interviews. Daily supervision was done for data completeness.
Data processing, analysis, interpretation, and presentation
The data were entered by using Epi data 3.1, then exported to SPSS version 23.0 for analysis. During analysis, all explanatory variables which have a significant association in bivariate analysis with a P-value <0.20 were entered into a multivariable logistic regression model to get an adjusted odds ratio (AOR), and those variables with 95% of confidence intervals (CI) and a P-value of < 0.05 was considered as statistically significant with MPI in HTC.