304 Sari Pediatri, Vol. 18, No. 4, Desember 2016 Perbedaan Kadar Vitamin D antara Hipotiroid Kongenital dan Anak Sehat Lianda Tamara, Dida A. Gurnida, R.M.Ryadi Fadil Departemen Ilmu Kesehatan Anak Fakultas Kedokteran Universitas Padjadjaran/Rumah Sakit Hasan Sadikin, Bandung Latar belakang. Pertumbuhan dan perkembangan yang optimal pada anak dengan hipotiroid kongenital ditunjang oleh nutrisi yang seimbang dan adekuat. Salah satu mikronutrien yang dibutuhkan adalah vitamin D. Di Indonesia, belum ada data kadar vitamin D pada anak dengan hipotiroid kongenital. Tujuan. menentukan perbedaan kadar vitamin D antara hipotiroid kongenital dan anak sehat. Metode. Studi comparative dengan rancangan potong lintang kriteria inklusi anak berusia 1 bulan–5 tahun yang tidak mendapat suplementasi vitamin D. Periode penelitian bulan Juli hingga Desember 2015. Pemeriksaan kadar vitamin D dilakukan dengan metode ELISA. Perbedaan kadar vitamin D pada kedua kelompok dianalisis dengan Mann Whitney. Hasil. Didapatkan 70 subjek yang memenuhi kriteria inklusi terdiri atas 35 anak dengan hipotiroid kongenital dan 35 anak sehat. Kadar vitamin D rerata pada kelompok hipotiroid kongenital adalah 85,87 nmol/L dan pada kelompok anak sehat adalah 97,74 nmol/L. Kadar vitamin D pada hipotiroid kongenital berbeda bermakna dengan anak sehat (p<0,001). Kesimpulan. Kadar vitamin D pada hipotiroid kongenital lebih rendah daripada anak sehat. Sari Pediatri 2016;18(4):304-7 Kata kunci: anak, defsiensi vitamin D, hipotiroid kongenital Vitamin D Levels Diferences between Congenital Hypothyroidism and Healthy Children Lianda Tamara, Dida A. Gurnida, R.M.Ryadi Fadil Background. Growth and development of children with congenital hypothyroidism are supported by balanced and adequate nutrition. One of the micronutrients needed is vitamin D. In Indonesia, data on vitamin D levels in children with congenital hypothyroidism is still unavailable. Objective. To determine vitamin D levels diferences between congenital hypothyroidism and healthy children. Methods. Tis study is a comparative research study with a cross-sectional design. Inclusion criteria for this study were children aged 1 month–5 years who did not receive supplementation of vitamin D. Tis study was conducted from July to December 2015. Te level of vitamin D performed by ELISA method. Diferences in vitamin D levels in both groups were analyzed by Mann Whitney. Results. Te subjects were 70 children who met the inclusion criteria, consisted of 35 children with congenital hypothyroidism and 35 healthy children. Mean Vitamin D levels in congenital hypothyroidism was 85.87 nmol / L and in healthy children was 97.74 nmol / L. Vitamin D levels in hypothyroid congenital signifcantly were diferent with healthy children (p<0,001). Conclusion. Serum levels of vitamin D in children with congenital hypothyroidism are lower than in healthy children. Sari Pediatri 2016;18(4):304-7 Keywords: children, congenital hypothyroidism, vitamin D defciency Alamat korespondensi: Dr. Lianda Tamara. Departemen Ilmu Kesehatan Anak Fakultas Kedokteran Universitas Padjadjaran/Rumah Sakit Dr. Hasan Sadikin Jl. Pasteur No.38 Bandung 40163. Email: tamaralianda@gmail.com