Abstrak: Latar belakang: Pneumonia adalah salah satu penyebab terbesar kematian balita di Indonesia dengan angka kematian 2.200 balita tiap harinya. Imunisasi Pneumococcal Conjugate Vaccine (PCV) merupakan upaya pencegahan paling efektif terhadap pneumonia pada anak. Sejak diperkenalkan pada 2017 di Lombok dan 2019 di Bangka Belitung, imunisasi PCV telah diperluas secara bertahap ke beberapa provinsi dan resmi dimasukkan ke program imunisasi rutin nasional pada September 2022. Akan tetapi, hingga akhir 2023, cakupan imunisasi PCV lengkap pada anak di Indonesia baru mencapai 62,7%, jauh di bawah target nasional (100%). Penelitian ini bertujuan untuk menganalisis hubungan antara faktor pendukung, pendorong, dan pemungkin dengan status kelengkapan imunisasi PCV pada anak usia 12-23 bulan di Indonesia. Metode: Studi ini menggunakan desain cross-sectional dengan total sampling diperoleh 9.675 anak usia 12–23 bulan yang menjadi responden SKI 2023. Analisis dilakukan secara univariat dan bivariat menggunakan uji Chi-square dan regresi logistik sederhana. Hasil: Cakupan imunisasi PCV lengkap nasional pada anak usia 12-23 bulan adalah 32,1%. Faktor yang signifikan berasosiasi dengan kelengkapan imunisasi PCV meliputi memiliki akses ke fasilitas kesehatan yang mudah (OR = 7,71; 95% CI = 5,54-10,73), berstatus imunisasi dasar lengkap (OR = 5,87; 95% CI = 5,29-6,51), tinggal di Kep. Sunda Kecil (OR = 2,69; 95% CI = 2,03-3,56), lahir ditolong oleh tenaga kesehatan (OR = 2,62; 95% CI = 1,23-5,58), memiliki catatan imunisasi (OR = 2,18; 95% CI = 1,92-2,47), dan dilahirkan di fasilitas kesehatan (OR = 2,13; 95% CI: 1,76–2,60). Kesimpulan: Besarnya nilai odds pada anak yang memiliki akses ke fasilitas kesehatan yang mudah menyiratkan bahwa pemerintah masing-masing daerah perlu mengurangi kesenjangan akses ke layanan kesehatan seperti menambah infrastruktur kesehatan di daerah dengan akses sulit dan menyediakan subsidi transportasi atau layanan imunisasi keliling bagi masyarakat dari daerah yang sulit dijangkau.

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Background: Pneumonia is one of the biggest causes of under-five deaths in Indonesia with 2,200 under-five deaths per day. Pneumococcal Conjugate Vaccine (PCV) immunization is the most effective preventive measure against childhood pneumonia. Since its introduction in 2017 in Lombok and 2019 in Bangka Belitung, PCV immunization has been gradually expanded to several provinces and was officially included in the national routine immunization program in September 2022. However, by the end of 2023, complete PCV immunization coverage among children in Indonesia will only reach 62.7%, far below the national target (100%). This study aimed to analyze the association between predisposing, reinforcing, and enabling factors with PCV immunization completeness among children aged 12-23 months in Indonesia. Methods: This study used a cross-sectional design with total sampling obtained 9,675 children aged 12-23 months who were respondents of SKI 2023. Univariate and bivariate analyses were conducted using the Chi-square test and simple logistic regression. Results: The national complete PCV immunization coverage in children aged 12-23 months was 32.1%. Factors significantly associated with PCV immunization completeness are having easy access to health facilities (OR = 7.71; 95% CI = 5.54-10.73), having complete basic immunization status (OR = 5.87; 95% CI = 5.29-6.51), living in Lesser Sunda Island (OR = 2.69; 95% CI = 2.03-3.56), was born assisted by a health worker (OR = 2.62; 95% CI = 1.23-5.58), had an immunization record (OR = 2.18; 95% CI = 1.92-2.47), and was born in a health facility (OR = 2.13; 95% CI: 1.76-2.60). Conclusion: The large odds ratio for children with easy access to health facilities implies that each local government needs to reduce disparities in access to health services such as adding health infrastructure in areas with difficult access and providing transportation subsidies or mobile immunization services for people from hard-to-reach areas.