The problem with Prevention of mother to Child Transmission (PMTCT) among pregnant women in Bukittinggi City is that there are still many pregnant women who do not carry out HIV tests. In 2021 K1 coverage is 95% but HIV screening coverage is only 45%, this shows that there are still many pregnant women who do not know their HIV status even though they have visited a health service facility. The aim of this research is to analyze the relationship between the level of knowledge and perceptions of pregnant women regarding the implementation of PMTCT. This research is a mix method study with systematic random sampling of 100 respondents. The results of bivariate analysis show the level of knowledge (p = 0.199), perceived vulnerability (p = 0.054), perceived severity (p = 0.916), perceived benefits (p = 0.993), perceived barriers (p = 0.360), perceived threats (p = 0.669 ) is not related to the implementation of PMTCT. Perception of cues to action (p=0.035) and support from health workers (p=0.007) were related to the implementation of PMTCT. Meanwhile, the results obtained from the multivariate analysis showed that the most significantly related variable was health workers (p = 0.005). Conclusion: The support provided by health workers is socialization and counseling, but not all health workers providing antenatal care have implemented this. Suggestions for Community Health Centers to optimize the implementation of counseling before and after HIV testing and for the Health Service to actively monitor the implementation of integrated ANC for all health workers providing antenatal care.
Keywords: Knowledge, perception, pregnant women