Tujuan: Penelitian ini bertujuan membandingkan kadar 25 (OH) D serum ibu dan tali pusat pada kelahiran preterm dan cukup bulan. Selain itu juga dicarikorelasi antara kadar 25 (OH) D serum ibu dengan tali pusat.
Metode: Pada penelitian ini digunakan desain potong-lintang. Penelitian dilakukan di RSUPN Cipto Mangunkusumo dan RS Budi Kemuliaan Jakarta, mulai dari Januari 2017 sampai dengan Februari 2018. Kadar 25 (OH) D ibu dan tali pusat dibandingkan antara kelompok cukup bulan dan preterm.Hasil: Didapatkan 81 subjek yang dapat dilakukan analisis, yaitu 36 subjek (44,4%) melahirkan cukup bulan dan 45 (55,6%) preterm. Median 25 (OH) D maternal pada kelompok preterm dan cukup bulan berturut-turut 15 ng/mL dan 13,95ng/mL, sedangkan tali pusat 13 ng/ml dan 11,85 ng/ml.Tidak terdapat perbedaan kadar 25 (OH) D serum maternal (p=0,96) dan tali pusat (p=0,80) antara kedua kelompok. Terdapat korelasi positif antara kadar 25(OH) ibu dengan tali pusat (r=0,59, p<0,001 untuk kelompok cukup bulan dan r=0,44, p<0,002 untuk kelompok preterm).Kesimpulan: Kadar 25 (OH) D serum ibu dan tali pusat tidak berbeda bermakna antara kelompok kelahiran preterm dancukup bulan. Terdapat korelasi antara kadar 25 (OH) D ibu dengan tali pusat.Results: From a total of 1706 neonates, the incidence of proven LONS was 15,4%. It was more prevalent (58.4%) in preterm neonates aged less than 37 weeks than in term (41.6%) neonates. Majority (67.6%) of proven LONS subjects were neonates with low birth weight (<2500 grams) and the largest percentage between them (35.1%) were in ‘low birth weight (≥1500- <2500 grams)’ group. Gram negative bacteria have emerged as predominant pathogens of LONS patients in our hospital, with most common were Klebsiella pneumonia, Acinetobacter spp., Escherichia coli, Enterobacter spp., and Pseudomonas aeruginosa. Conclusions: The incidence of LONS in 2020 is 15,4%. The proportion of LONS among LBW and preterm neonates is significantly higher compared to normal birth weight and term neonates. Both LBW and NBW neonates, preterm and term neonates suffering LONS in CMH’s neonatal unit are mostly caused by gram-negative bacteria and this finding is statistically significant. Different pathogens causing LONS in this study can be utilized further to analyse the susceptibility of these pathogens to the current empirical antibiotic guideline used in CMH."