Neonatal mortality rate (NMR) in intensive care unit (ICU) of Ardabil city hospitals and related factors

Mehrdad Mirzarahimi, Afsaneh Enteshari- Moghaddam, Sepideh Khademi


Background: Neonatal mortality rate (NMR) is one of the important parameters in assessing quality of life in societies. NMR are often used as a standard index for evaluation health, education and social systems, nutritional status and health programs for neonates in countries and the first step in reducing mortality rate and promoting the level of this indicator is to identify the causes of mortality. Therefore, this study was conducted to determine the NMR in new born infants admitted to the ICU of Ardabil city hospitals.

Methods: This study was a descriptive cross-sectional study that has been done on 184 dead neonates in Ardabil city hospital during 2016-2017. The necessary information was extracted from the hospital records of neonates and entered in a provided checklist and then analyzed by statistical methods such as tables in SPSS version 19.

Results: The mortality rate of hospitalized infants in this research was 6.6%. Of all patients, in 65.2% CBC were impaired and 58.7% of patients had impaired serologic and biochemical tests. 68.5% of patients had prematurity, 62.5% RDS and 20.7% had congenital anomalies.

Conclusions: Prematurity, RDS and congenital anomalies are the most important causes of NMR and we should programing to decreasing the NMR rate in future.


Ardabil, ICU, Neonatal mortality rate, Prematurity

Full Text:



Feigelman S. Assessment of fetal growth and development. In: Kliegman RM, Stanton BF, St Geme JW, Schor NF, eds. Nelson text book of Pediatrics, 20th ed. Saunders, Philadelphia; 2016:60-62.

Moss W, Darmstadt GL, Marsh DR, Black RE, Santosham M. Research priorities for the reduction of perinatal and neonatal morbidity and mortality in developing country communities. J Perinat Med. 2002;22:484-95.

Yu VY. Global, regional and national perinatal and neonatal mortality. J Perinat Med. 2003;31(5):376-9.

Sankaran K, Chien Li-Yin, Walker R, Seshia M, Ohlsson A, Lee Sh K. Variations in mortality rates among Canadian neonatal intensive care units. CMAJ. 2002;166(2):173-8.

Tariq P, Kundi Z. Determinants of neonatal mortality. J Pak Med Assoc. 1999;49(3):56-60.

Fallahzadeh H, Gholestan M, Rezvan A, Mohtashami A, Hakimi Kh, Ahmadabadi M. Study the neonaltal mortality rate and some related factors in Yazd city. J Shahid Sadoughi Univ Med Sci. 2000;8(4):54-7.

Chen ZL, Li FY. Mortality rate and causes of death of premature and low-birth-weight infants in cities. Zhonghua Fu Chan Ke Za Zhi. 1993;28(1):27-30.

Fonseka P, Wijewardene K, Harendra de Silva DG, Goonaratna C, Wijeyasiri WA. Neonatal and post-neonatal mortality in the Galle district. Ceylon Med J. 1994;39(3):147-8.

Mirzarahimi M, Abedi A, Shahnazi F, Saadati H, Enteshari A. Causes and rate of mortality among the newborns in NICU and newborns unit at Imam Khomeini and Alavi Hospitals in Ardabil from September 2006 to September 2007. J Ardabil Univ Med Sci. 2008;8(4):424-30.

Nayerri F, Amini E, Eloumi Z, Dehghan-niri A. Study the main causes of NMR based on ICD in valiasr hospital. Iranian J Pediatr. 2007;17(10):22-6.

Baer L, Henry S. Analysis of 1600 thrombcytopenic neonates in a multi hospital health care system. J Perinatol. 2007;27(12):790-6.

Taheri F, Sharifzadeh G, Kaheni S, Saboori G. Epidemiology of Neonates Hospitalized in NICU of Vali e asr Hospital, Birjand, in 2005-2006. Mod Care J. 2007;4(1):29-34.

Sachdeva RC. Quality and safety in healthcare for children. In: Kliegman RM, Stanton BF, St Geme JW, Schor NF, eds. Nelson text book of Pediatrics, 20th ed. Saunders, Philadelphia; 2016:18-26.

Pour Arian SH, Sabet S. Study the effective causes on transition of neonates to ICU in Shiraz hospital. Shiraz Med Res J. 2005;1(3):34-42.

Shirvani F, Khosroshahi N. A survey of frequency and causes of perinatal mortality in Tehran, 1995. Tehran Univ Med J. 1998;56(1):69-73.

Rakholia R, Rawat V, Bano M, Singh G. Neonatal morbidity and mortality of sick newborns admitted in a teaching hospital of Uttarakhand. Chris Med J Health Res. 2014;1:228-34.

Mah Mungyeh E, Chiabi A, Tchokoteu Pouasse FL, Nguefack S, Bogne JB, Siyou H, et al . Neonatal mortality in a referral hospital in Cameroon over a seven year period: trends, associated factors and causes. African Health Sci. 2014;14(3):517-25.

Abdellatif M, Ahmed M, Flordeliz Bataclan M, Ahmed Khan A, Al Battashi A, Al Maniri A. The patterns and causes of neonatal mortality at a tertiary hospital in Oman. Oman Med J. 2013;28(6):422-6.

Aramesh M, Malekian A, Dehdashtian M, Shahvari A, Monjezi L. Determine the rate and cause of NMR in ICU of Ahvaz hospital in 2011. Razi Med J. 2004;21(120):36-43.

Nouri A, Barati L, Qhezelsofly F, Niazi S. Causes of infant mortality in Kalaleh city during 2004-2012. Jorjani Biomed J. 2013;1(2):32-7.

Javanmardi Z, Beigi Z, Ghodoosi A. Investigating about the causes of neonates’ death in the hospitals of Isfahan Province. Ir J Forensic Med. 2010;15(4):229-33.

Bahman-Bijari B, Niknafs P, Maddahiyan S. Causes of neonatal mortality in Kerman province in 1387- (2008-2009). J Urmia Univ Med Sci. 2012;22(6):501-6.