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"awareness of KCDC guidelines" (OR 3.11, 95% CI 1.11-8.73), and "awareness of the 2019 national free influenza vaccination program for pregnant women" (OR 4.88, 95% CI 2.34-10.17). OBGYN doctors most commonly chose 'guidelines proposed by the government or public health (108, 46%) and academic committees (59, 25%), as a factor which expect to affect the future recommendation CONCLUSION This study showed that providing information about maternal influenza vaccination, especially by OBGYN doctors, is crucial for increasing vaccination coverage in preg