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Epidemiology of Needle Sticks and Sharp Injuries Among Nurses in an Iranian Teaching Hospital

AUTHORS

Seyyedeh Roghayeh Ehsani 1 , Esmaeil Mohammadnejad 2 , * , Mohammad Reza Hadizadeh 3 , Javad Mozaffari 4 , Simin Ranjbaran 1 , Roghyeh Deljo 1 , Sedigheh Deljo 1

AUTHORS INFORMATION

1 Imam Khomeini Clinical Hospital Complex, Tehran University of Medical Sciences, Tehran, IR Iran

2 Department of Nursing, International Branch, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran

3 Department of Infectious Diseases, Mashhad University of Medical Sciences, Mashhad, IR Iran

4 Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran

How to Cite: Ehsani S R, Mohammadnejad E, Hadizadeh M R, Mozaffari J, Ranjbaran S, et al. Epidemiology of Needle Sticks and Sharp Injuries Among Nurses in an Iranian Teaching Hospital, Arch Clin Infect Dis. 2012 ; 8(1):27-30. doi: 10.5812/archcid.14409.

ARTICLE INFORMATION

Archives of Clinical Infectious Diseases: 8 (1); 27-30
Published Online: December 24, 2012
Article Type: Brief Report
Received: September 16, 2012
Revised: October 17, 2012
Accepted: November 20, 2012
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Abstract

Introduction: Needle stick injuries (NSI) are major occupational hazards for health care workers.

Objectives: This study aimed to determine the Epidemiology of needle sticks and sharp injuries among nurses of an Iranian Teaching Hospital.

Materials and Methods: This descriptive cross-sectional study was conducted in 2009 on 328 nurses in a health center in Tehran. Stratified random samples were selected among the staff. Data were collected through a questionnaire prepared for this study and were analyzed with the SPSS software version 15, by using descriptive and analytical statistical methods.

Results: The results showed that 45.12% of the employees' occupational injuries were caused by sharp objects. Regarding the type of device, needle and angiocath needle had caused the most serious injuries with a frequency of 43.91% and 29.05%, respectively. After the injury incidence, 41.87% of the health staff only washed the injury area with adequate soap and water and 76.82% of the nurses have received the hepatitis B vaccination. The injury mostly occurred in the emergency department due to the overcrowding in the ward and the staff fatigue. There were significant associations between the staff age as well as the ward with the extent of injuries.

Conclusions: Needle stick injuries are common among nurses and are often not reported. Improved standard infection control precautions (SICPs) policy and reporting strategies are needed in order to increase occupational safety for nurses.

Keywords

Needlestick Injuries Health Personnel Needles

Copyright © 2012, Infectious Diseases and Tropical Medicine Research Center. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

1. Introduction

Among the most dangerous circumstances which threaten the health professionals are the injuries resulting from contaminated cutting equipment during operations. Although numerous pathogens can be transmitted by contaminated cutting equipment, transmission of hepatitis B, C and AIDS/HIV are the most prevalent ones (1-3). More than 20 pathogens are transmitted from injuries caused by needles and sharp instruments (4). According to the center for disease control and prevention (CDC) and the conducted studies, the risk of HIV-infected injuries caused by devices is 0.3%, hepatitis C is between 2.7% - 10% and the risk for hepatitis B is 5% - 45% among health professionals (5, 6). Each year, 600,000 to 800,000 and each day 200 contacts occur with the tip of sharp and cutting objects (7). According to the reports, a blood-borne serious infection can cost a million US dollars concerning performing tests, follow-up, cost of disability and loss of work time. In addition, the cost of preventing the suspected or diagnosed injuries is estimated at 3000 USD (8). Furthermore, the economic cost of injuries caused by sharp objects in the US is estimated to be approximately 51 to 3766 USD. About 14 to 839 cases per 1,000 individuals are working in clinical areas incorporating health care (9). Nine Studies have shown that at least 64% of health workers have had contact with blood or body fluids at least once during their professional life (10). Ten nurses are the most common groups in medical staff who face needle penetration (11-13).

Estimating the true number of the needle penetration is difficult. About 70% of these cases are not reported even in countries which have such systematic reporting systems (14). About 35% of affected cases are not reported in the countries with recordkeeping and reporting protocols (15). Several studies are performed to identify factors leading to damages caused by needle stick, sharp and cutting objects in the world. In these studies, many factors such as individual agents, device, treatment and management with various dimensions have been investigated. It was stated that the most important factors in causing the injuries were long working hours and not having enough sleep during the night shift (16-19).

2. Objectives

The present study was conducted in 2009 to determine the prevalence and causes of sharp and cutting object injuries and performance of the nurses in an educational treatment center in Tehran, Iran.

3. Materials and Methods

This cross sectional study aimed to determine the prevalence and causes of sharps and cutting objects injuries and performance of the nurses in the one of the educational treatment centers in Tehran in the year of 2009. Data collection tool consisted of two parts: a questionnaire with 10 questions including demographic characteristics and 22 questions relevant to the incidence and the caused damages. The method of content validity was used to determine the validity of the questionnaire and the re-test method for its scientific reliability. The questionnaire was completed through interview with selected individuals who were allowed to choose more than one choice where question was in relevance with actions taken after the injury. In this study the stratified sampling method was used so that in each sector which was relevant to the number of nurses, new nurses would be added to the study. The inclusion criteria for the staff were to first perform at least six consecutive months of nursing services. Second, they did not participate in the similar research before. The questionnaire was anonymous due to the observance of ethics and integrity and the collected information maintained confidential by the researcher at all stages of the study. Participating in this study was due to the informed verbal agreement of all the staff. The coded data were entered in SPSS software version 16. Data analyses were performed using descriptive statistics (frequency, mean and standard deviation for each variable) and analytical statistics (Chi-square, t-tests, independent and logistic regression).

4. Results

The results showed that the incidence of needle injuries were 45.12% during their working period and 55.4% of the mentioned group were injured more than twice. The majority of subjects (70.42%) were female and (60.36%) married. The mean age was 30.71 + 3.07 years who had 9.03 + 7.13 years of experience. In terms of education, most of the nurses (90.24%) had bachelor degree. Regarding the type of device, needle and angicat, at 43.91% and 29.05%, respectively caused the most injuries and the staff were mostly affected during reloading the needle stick (recapping) (Table 1).

Table 1. Distribution of Type and Cause of Damage Resulted by Sharp and Cutting Devices among Nurses in an Educational Hospital in Tehran, Iran
DistributionNo. (%)
Device
Needle65 (43.91)
Scalp17 (11.48)
Angiocath needle43 (29.05)
Scalpel12 (8.10)
Suture needle5 (3.37)
Other6 (4.05)
Cause
Catheters placement28 (18.91)
Needle recapping73 (49.32)
Washing contaminated tools9 (6.08)
Injections (intravenous, intramuscular and subcutaneous)24 (16.21)
Other14 (9.45)

In terms of location of the event, the most injuries were occurred in the emergency department (48.64%) and in terms of working shifts, the injuries were 15.54% during the morning shift, 29.72% during the evening shift and 54.72% during night shift. This study revealed that 76.82% of nursing staff who completed the vaccination against hepatitis B and the antibody was also included 90.24% of the cases. The necessary actions were immediately taken after the damage (e.g. wash with soap and water and disinfection of the damaged area) in 41.87% of the nurses who injured by needles (Table 1). Moreover, 75.30% of the nurses were trained in terms of the overall standards (Universal Precaution) and 53.39% of the injured nursing personnel were not reported to the authorities of the hospital. The most important reasons were unfamiliar due to reporting process and dissatisfaction with follow-up which was carried out by other colleagues. The relationship between age, gender, duration and type of section were evaluated for damages caused by sharp instruments among nurses. A significant relationship was documented between age and type of the section and the mentioned damages (P < 0.05). Logistic regression analysis with backward method showed that there was a significant relationship between work experience and injury history in the final model (OR = 1.15, CI = 0.97 - 1.97) which can mean the less experienced the staff is, the greater the history of the injury can be.

5. Discussion

The damage caused by the needle sticks and contaminated sharp and cutting objects are amongst high risk injuries. Given current study, the prevalence of these injuries was 45.12%. The prevalence rate was 49.6% in Askarian study which was conducted on hospital nurses in Fars province, Iran (20).Studies in other countries confirm the risk of injuries by needle sticks. These ratios were different in several studies and represented the need for more attention to this subject by the officials (21, 22). The main reason for the high frequency of injury with sharp and cutting objects was needle recapping after its use. Needle recapping was considered to be the most common cause of injury after reviewing numerous studies (15-23). However, using the needle cutter device or boxes for disposal of contaminated needles (safety box) in the clinical sections has been escalating in recent years. It has also been recommended to avoid re-capping the contaminated needles in order to reduce the injury (4).

Given the location of the injury in our study, most of the injuries were occurred in the emergency department, while the study in the State of Qatar showed the highest incidence of injury in the interior section (22). The medical and health professionals, especially the emergency department staff are the most common groups who are at risk of pathogens (11). Damages are more likely to occur in the emergency department because of heavy rush and acceleration in the program of the staff, faster performance of the tasks and dealing with the emergent cases more than the other sections. The rate of injury report among nursing personnel was 46.6% and the most important reason for not reporting the issue was that the staff appeared to be unfamiliar with the reporting process. A similar study in Iran showed that 23.6% of nurses reported the injuries the majority of which (97.1%) was oral (24). Not having enough time, complicated administrative procedures, rate of reported injuries recorded less in the same studies (14, 25). The study of Nash et al. indicated that the source of injury affected the nurses' judgments on reporting damages (26). Knight et al. stated that one of the main reasons for not reporting the occurred injury is a myth that the damage is safe and trivial (27). Setting up a registration and reporting system as well as a standard protocol for the country are recommended to not only reduce or eliminate this problem but also to develop a timely reporting for having proper planning.

82.76% of the nurses had been fully vaccinated in terms of vaccination coverage against hepatitis. These rates are reported as 66% in India, 82.7% in Pakistan and 82% in Saudi Arabia (7, 15). It should be noted that contacting with blood, sharp instruments contaminated with blood and the infectious substances of infected patients are real threats to the health care staff and with on time vaccination can prevent the affection to dangerous diseases. However unfortunately in this case, there are a number of employees who do not take it serious. Therefore, vaccination against hepatitis B is recommended for medical staff and it should be particularly mandatory for nurses. Due to the high rates of injury caused by sharp and cutting objects and in order to reduce and eliminate its affects, the following actions are recommended: prevention of injuries, dealing with the objects under observation of hospital infection control committee, set up a registration system, regular reporting of occupational accidents in hospitals, planning and having a needle stick protocol, accurate measurements of serum viral markers and formation of separate personnel health records for each employer.

Acknowledgements

Footnotes

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