Assessing the quality of sleep among nurses working at educational hospitals of Zanjan University of Medical Sciences and its related factors

  • ُSalehi Hamid Department of Nursing, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
  • Abolfazl Amini Department of Nursing, School of Nursing and Midwifery, Zanjan University of Medical Sciences, Zanjan, Iran
  • Bagher Feizzy-Amiry Department of Surgery, Mosavy Hospital, Zanjan University of Medical Sciences, Zanjan, Iran
  • Vahid Pakpour Department of Nursing, Tabriz University of Medical Sciences, Tabriz, Iran
sleep hygiene, nurses, health


Background & Aim: Nurses’ health due to its direct impact on the society’s health is of considerable importance, which is usually neglected. One of the effective factors on individual’s health is the quality of their sleep. Considering that nurses would work different work shifts, including night shifts, it is possible for them to suffer from sleep disorders. The present was conducted to evaluate the quality of sleep among nurses working at Educational hospitals of Zanjan University of Medical Sciences and its related factors.

Methods & Materials: The present research was a descriptive cross-sectional study that was conducted at educational hospitals of Zanjan University of Medical Sciences. Nurses working at internal, surgical and ICU departments were evaluated using Pittsburgh Sleep Quality Index. The study had 176 participants. Data were analyzed using SPSS 16 and Chi square test and Spearman correlation coefficient.

Results: In the present study. 14% of the nurses had a desirable quality of sleep but the quality of sleep in most of the participants (86%) was undesirable. Chi square test showed that the quality of sleep was significantly better among the nurses working at ICUs than nurses working at internal and surgical departments (p = 0.039).

Conclusion: Most of the participated nurses in the present study had an undesirable quality of sleep, which was worse among the nurses working at internal and surgical departments. This might be due to the heavier workload among the nurses of these departments and the ratio of nurses to the patients.


Aung K, Nurumal M, Zainal S. Sleep Quality and Academic Performance of Nursing Students. Journal of Nursing and Health Science. 2016; 5(6): 145-9.

Archer F, Williams B, Sofianopoulos S, Thompson B. The exploration of physical fatigue, sleep and depression in paramedics: a pilot study. Australasian Journal of Paramedicine. 2011; 9(1): 1-33.

Lai P-P, Say Y-H. Associated Factors of Sleep Quality and Behavior among Students of Two Tertiary Institutions in Northern Malaysia. Med J Malaysia. 2013; 68(3): 196-203.

Menon B, Karishma H, Mamatha I. Sleep quality and health complaints among nursing students. Ann Indian Acad Neurol. 2015; 18(13): 363-4.

Kolagary S. Prevalence of sleep of among nurses in the educational Center of shahid beheshti School of Nursing and Midwifery Shahid Beheshti [dissertation]: Shahid Beheshti university of medical sciences; 1997.

Potter P, Perry G. Basic Nursing Theory and Practice. ed, editor. Tehran: Publishing Salmi; 2007.

Boggild H. Shift work and heart disease. Unpublished Ph D, University of Aarhus, Aalborg. 2000.

Cooper R. Sleep. 1 ed. London: 1994.

Salehi K, Alhani F, Mahmoudifar Y, Rouhi N. Quality of sleep and related factors among Imam Khomeini hospital staff nurses. Iran Journal of Nursing. 2010; 23(63): 18-25.

Chien P-L, Su H-F, Hsieh P-C, Siao R-Y, Ling P-Y, Jou H-J. Sleep Quality among Female Hospital Staff Nurses. Sleep Disorders. 2013; 20(20): 1-6.

Ohida T, Kamal A, Sone T, ISHII T, UCHIYAMA M, MINOWA M, et al. Night-shift work related problems in young female nurses in Japan. J Occup Health. 2001; 43(3): 150-6.

Shahsavand E, Mehrdad R, Haghighi K. Survey about sleep disorders prevalence among nurses in Emam Khomeini Hospital-Tehran and effective factors on it. UMJ. 2001; 12(3): 237-45.

Sanjari M, Shirazi F, Heydari S, Maleki S, Saalemi S. Association of Sleep and Occupational Injuries in Nurses. IJN. 2009; 22(61): 32-41.

Buysse DJ, Reynolds CF, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Research. 1989; 28(2): 193-213.

Buysse DJ, Reynolds III CF, Monk TH, Hoch CC, Yeager AL, Kupfer DJ. Quantification of subjective sleep quality in healthy elderly men and women using the Pittsburgh Sleep Quality Index (PSQI). Sleep. 1991; 14(4): 331-8.

MB S, CD K, JR W. Sleep impairment in patients with social phobia. Psychiatry Res. 49(3): 251-6.

Zisberg A, Gur-Yaish N, Shochat T. Contribution of Routine to Sleep Quality in Community Elderly. Sleep. 2010;33(4):509-14.

Soleimany M, Ziba FN, Kermani A, Hosseini F. Comparison of Sleep Quality in Two Groups of Nurses With and Without otation Work Shift Hours. Iran Journal of Nursing. 2007; 20(49): 29-38.

Yaylak D, Çalışgan B, Karakaş T, Mert Ö, Öncel C, Köse O, et al. Heavy Workload of Nurses and Effects of it on Sleep/Reted Levels. TMSJ. 2014; 1(1): 23-6.

Ghaljaei F, Naderifar M, Ghaljeh M. Comparison of general health status and sleep quality between nurses with fixed working shifts and nurses with rotating working shifts. Zahedan Journal of Research in Medical Sciences. 2011; 13(1): 47-50.

N A, R J. Assessment of Job Injureis and Related to Shift [dissertation]: Uromieh University of Medical Sciences; 2002.

Nakata A, Haratani T, Takahashi M, Kawakami N, Arito H, Kobayashi F, et al. Association of sickness absence with poor sleep and depressive symptoms in shift workers. Chronobiology International. 2004; 21(6): 899-912.

Boughattas W, El Maalel O, Chikh RB, Maoua M, Houda K, Braham A, et al. Hospital night shift and its effects on the quality of sleep, the quality of life, and vigilance troubles among nurses. International Journal of Clinical Medicine. 2014; 5(1): 572-83

Costa G. Shift Work and Occupational Medicine: An Overview. Occupational Medicine. 2003; 53(1): 83-8.

Deriennic F, Ribet C, Volkoff S. Les troubles du sommeil, l’âge et le travai. DARES. 1999; (23): 1-6.

Ohayon MM, Carskadon MA, Guilleminault C, Vitiello MV. Meta-analysis of quantitative sleep parameters from childhood to old age in healthy individuals: developing normative sleep values across the human lifespan. Sleep. 2004; 27(7): 1255-73.

Karagozoglu S, Bingöl N. Sleep Quality and Job Satisfaction of Turkish Nurses. Nursing Outlook. 2008; 56(6): 298-307.

Vidacek S, B Radosevic-Vidacek, Kaliterna L, Prizmic Z. The Productivity of Female Shift Workers. Archives of Industrial Hygiene and Toxicology. 1990; 41: 339-45.

Takahashi M, Fukuda H, Miki K, Haratani T, Kurabayashi L, Hisanaga N, et al. Shift Work-Related Problems in 16-h Night Shim Nurses (2): Effects on Subjective Symptoms, Physical Activity, Heart Rate, and Sleep. Industrial Health. 1999; 37(2): 228-36.

How to Cite
Hamidُ, Amini A, Feizzy-Amiry B, Pakpour V. Assessing the quality of sleep among nurses working at educational hospitals of Zanjan University of Medical Sciences and its related factors. NPT. 4(4):164-169.
Original Article(s)