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ORIGINAL ARTICLE  
Year : 2011  |  Volume : 36  |  Issue : 3  |  Page : 217-221
 

Hand hygiene compliance in the intensive care units of a tertiary care hospital


1 Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
2 Department of Critical Care, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
3 Department of Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
4 Department of Pulmonary Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India

Date of Submission03-May-2010
Date of Acceptance24-Aug-2011
Date of Web Publication22-Oct-2011

Correspondence Address:
Sarit Sharma
Department of Community Medicine, DMC and Hospital, Old Campus, Civil Lines, Ludhiana 141 001, Punjab
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-0218.86524

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   Abstract 

Context: Hand hygiene (HH) is the most important measure to prevent hospital-acquired infections but the compliance is still low. Aims: To assess the compliance, identify factors influencing compliance and to study the knowledge, attitude and perceptions associated with HH among health care workers (HCW). Settings and Design: Cross-sectional study conducted in 42 bedded Medical (Pulmonary, Medicine and Stroke) intensive care units (ICU) of a tertiary care hospital. Materials and Methods: HCWs (doctors and nurses) were observed during routine patient care by observers posted in each ICU and their HH compliance was noted. Thereafter, questionnaire regarding knowledge, perception and attitudes toward HH was filled by each HCW. Statistical Analysis: Percentages and χ2 test. Results: The overall compliance was 43.2% (394/911 opportunities). It was 68.9% (31/45) in the intensivists, 56.3% (18/32) in attending physicians, 40.0% (28/70) in the postgraduate residents and 41.3% (301/728) in the nurses. Compliance was inversely related to activity index. Compliance for high, medium and low risk of cross-transmission was 38.8% (67/170), 43.8% (175/401) and 44.7% (152/340), respectively. Conclusions: Compliance of the study group is affected by the activity index (number of opportunities they come across per hour) and professional status. The HCWs listed less knowledge, lack of motivation, increased workload as some of the factors influencing HH.


Keywords: Compliance, hand hygiene, health care workers, hospital acquired infections, intensive care unit


How to cite this article:
Sharma S, Sharma S, Puri S, Whig J. Hand hygiene compliance in the intensive care units of a tertiary care hospital. Indian J Community Med 2011;36:217-21

How to cite this URL:
Sharma S, Sharma S, Puri S, Whig J. Hand hygiene compliance in the intensive care units of a tertiary care hospital. Indian J Community Med [serial online] 2011 [cited 2020 Jun 5];36:217-21. Available from: http://www.ijcm.org.in/text.asp?2011/36/3/217/86524



   Introduction Top


Hospital-acquired infections complicate 7-10% of hospital admissions. [1],[2] Patients in the intensive care units (ICUs) are more likely to be colonized or infected by harmful and multidrug-resistance micro-organisms and most of these infections are spread by carriage of microorganisms on the health care workers' (HCWs) hands. [3] Hand hygiene (HH) is the single most important measure to prevent this but despite relative simplicity of HH procedures and recommendations; compliance with hand washing is still poor. [4],[5] Present study was aimed to know the compliance, to identify the factors influencing compliance and also to assess the knowledge, attitude and perceptions associated with HH among HCWs.


   Materials and Methods Top


Study design

Cross-sectional.

Settings

The study was carried out in the 42-bedded ICUs (Pulmonary, Medicine and Stroke) of a tertiary care teaching hospital of Punjab after obtaining approval from the hospital ethics committee.

Each ICU is well-equipped with HH facilities. The bottles of an alcohol-based liquid hand disinfectant as well as medicated soap are available at the sinks placed near patient's bedside. The sink to patient-bed ratio is 1:2.

Inclusion criteria

Patients included all the patients admitted to the ICU during the study period and no stratification was done between the critically ill, ventilated or non-ventilated patients.

Health care workers


HCWs in this study included all physicians on rounds in the ICUs, intensivists, all postgraduate (PG) residents and nurses involved in patient care posted in these ICUs. HCWs were categorized into two categories doctors and nurses for the sake of simplicity. Nurse to patient ratio was 1:2.

Hand hygiene action [3]

Hand washing: It included washing hands with an unmedicated soap or medicated soap (antiseptic hand washing) and water for 1 minute.

Hygienic hand rubbing with an antiseptic solution or alcohol based hand rub using a small quantity (2-3 mL) (handrubbing) for at least 20 seconds till the hands are dry and HH action will include all the recommended steps.

Opportunities

An opportunity was any potential HH action needed during patient care as per recommendations. Opportunities for HH were assessed according to published guidelines [1],[3],[6]

Opportunities were stratified into three categories with respect to risk of cross-transmission: [6]



Observers

One intern each posted in three ICUs were trained as observers and validated before the study during monitoring sessions in which two observers worked simultaneously and inter-rater agreement was high for all variables.

Methodology

Individual HCW was observed during routine patient care by the observers with respect to potential HH opportunities available, number of HH actions performed and total time of observation during each patient care episode. Each HCW was included only once in the study and was not aware of being observed. Observations were distributed over a 2-month period and were made only in day shift.

HH action, whether by hand-washing or alcohol-based hand rubbing, was the main outcome variable. Use of gloves was not considered equivalent to HH adherence unless followed by a HH action according to recommendations. Failure to remove gloves after patient contact between caring for two patients or between a dirty and a clean body site on the same patient was considered nonadherence. [1],[3],[6]

Questionnaire

After obtaining a written informed consent from the HCW, he or she was asked to fill a preformed questionnaire which included information about age, sex, professional status and questions regarding knowledge, perception and attitudes toward HH. Guidelines from social cognitive theories applicable to health-related behaviors were followed in the construction of the questionnaire. [7],[8] Knowledge, attitude and perception toward HH, perception of difficulty in adhering to HH, intention to adhere to HH, and perception of the risk for cross-transmission linked to non-compliance were assessed. In the end of the performa, suggestions to improve HH were asked. Anonymity was guaranteed and after filling of performa, the observers accompanied by one of the investigators, guided the HCW about the missed opportunities and correct method of HH as per recommendations for further implementation.

Statistical analysis

Study variables included age, sex and professional status of the HCW, type of HH opportunity (high, medium, or low risk for cross-transmission), activity index and duration of the observation period. The activity index was estimated by the number of available opportunities for HH per hour of patient care for each HCW observation. Results were analyzed using percentages and c2 test using software Statistica.


   Results Top


During the study, a total of 114 HCWs were observed over 79 hrs of observation period, spread over two months, which created 911 HH opportunities. The HCWs comprised of 18 attending physicians, eight intensivists, nine senior residents, 10 PG residents, four non-PG residents, and 65 nurses posted in the ICUs. The mean age of the participants was 37.7 ± 11.22 yrs and 30 ± 5.22 yrs for male and female doctors, and 26 yrs and 29.4 ± 5 yrs for male and female nurses, respectively.

Total desired HH opportunities during the study period were 911 [728 (79.9%) from the staff nurses and 183 (20.1%) from the doctors]. HH actions actually performed by the HCWs were 394 and overall compliance of the study group was estimated as 43.2%. Ninety-three HH actions were performed by the doctors and 301 by the nurses and the HH compliance in the both groups was 50.8% and 41.3%, respectively [Table 1]. Compliance with HH was lowest (40.4%) in the age group of 21-30 years and maximum (65.1%) in the age group of 31-40 years in doctors, whereas the compliance was comparable in both the age groups (41.5% and 41.1%) in the case of nurses [Table 1].
Table 1: Compliance with hand hygiene in relation to age


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Compliance was higher in the intensivists 31/45 (68.9%) and attending physicians 18/32 (56.3%) and lower in the PG residents 28/70 (40.0) and nurses 301/728 (41.3), respectively. It was observed that higher the number of HH actions required lower was the compliance as in the case of nurses and PG residents [Table 2].
Table 2: Compliance to hand hygiene in relation to professional status


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Compliance with HH was lower (38.2%) when the activity index was high (>20) and higher (52.1%) when activity index was low (<10). However, the difference in compliance between the three categories is not statistically significant [Table 3].
Table 3: Compliance with hand hygiene in relation to activity index and risk of cross transmission of infection


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Compliance for medium and low risk of cross-transmission was relatively higher (43.8% and 44.7%, respectively) than that for high level of risk of cross-transmission (38.8%) [Table 3].

[Table 4] shows the subjective responses of HCWs to the questionnaire regarding the knowledge, attitude and perceptions toward HH.
Table 4: Knowledge, beliefs and perception associated with hand hygiene


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   Discussion Top


Nosocomial infections occur worldwide and affect both developed and resource-poor countries. Infections acquired in health care settings are among the major causes of death and increased morbidity among hospitalized patients.

Semmelweis observed that normal hand washing did not always prevent the spread of fatal infection and recommended hand disinfection in a solution of chlorinated water before each vaginal examination. [9] Since then careful hand washing between care of patients remains one of the most important measures for preventing the spread of pathogens in hospitals. In the present study overall compliance of the study group was 43.2% and it was more in doctors (50.8%) than nurses (41.3%). Pittet et al. [4] observed compliance of 48% and nurses had the highest hand washing adherence rates (52%), while physicians were the worst offenders (23%).

In another study of the 5639 opportunities for HH, 3383 (59.9%) were properly performed and overall rates of compliance were 66.1% for doctors, 60.7% for nurses and 38.6% for paramedical staff. [10]

Maximum opportunities and lowest compliance (40.4%) was seen in age group 21-30 years which may be due to more number of subjects and increased workload on this age group both in case of nurses and doctors [Table 1]. Nurses came across highest number (79.9%) of the HH opportunities while compliance was higher in the intensivists (68.9%) and in attending physicians (56.3%), which may be due to decreased number of opportunities in the later group [Table 2]. Compliance was lower (38.2%) when the activity index was high (>20) and higher when activity index was low [Table 3]. This shows that higher the number of opportunities available, lower is the compliance as was also seen in other studies. [4],[5],[6],[8],[11] So, the high compliance in the intensivist and attending physician group may reflect decreased number of opportunities available.

The compliance for medium and low risk for cross-transmission was relatively higher than that for high level of risk for cross-transmission. These results are comparable to other studies. [6],[10] So high workload and opportunities for HH related to a high risk for cross-transmission were associated with reduced adherence.

In response to the questionnaire, 82% of doctors and 59% of nurses claimed to have knowledge about HH recommendations. When asked whether they were practicing HH according to recommendations, 71% of doctors and 63% of nurses gave positive responses whereas actual compliance obtained from the study was low. Higher number of HCWs perceived HH as useful measure to prevent hospital-acquired infections yet the knowledge was not converted to actions. 54% of doctors and 63% of nurses felt difficulty in following HH recommendations. Only 32% of doctors 21% of nurses thought that their colleagues performed HH according to recommendations. 93% of doctors and 87% of nurses knew that non-compliance to HH during patient care imply a risk of cross-infections. A high proportion of HCWs indicated a positive attitude toward HH. 68% of doctors and 59% of nurses expressed that they were motivated to improve their adherence level, which indicates that we need to work on this aspect.

In response to the question about the cause of low adherence, HCWs attributed it to lack of motivation, lazy attitude, work overload, less time in emergency situations, administrative apathy, lack of knowledge and allergy to soap/hand rub, etc. Important suggestions given by the participants for improving compliance included more education programs, demonstrations of correct technique of HH, regular monitoring and feedback, posters containing educational messages and demonstrating correct techniques to be displayed at various places, and active involvement of the administration.

The Centers for Disease Control and Prevention's (CDC's) Healthcare Infection Control Practices Advisory Committee (HICPAC) published its comprehensive Guidelines for HH in healthcare settings in 2002. The guideline recommended that healthcare facilities develop multidimensional programs to improve HH practices. [12] Recognizing a worldwide need to improve HH in healthcare facilities, the World Health Organization (WHO) launched its Guidelines on Hand Hygiene in Health Care (Advanced Draft) in October 2005. These global consensus guidelines reinforce the need for multidimensional strategies as the most effective approach to promote HH. [13],[14]


   Conclusions Top


Increased HH opportunities, increased activity index, increased risk of cross-transmission, lack of knowledge, lack of motivation, less time in emergency situations, etc. came out as the reasons of low compliance. Although the HH procedure is simple, its application by HCW is a complex phenomenon that is not easily explained or changed. A multidimensional approach targeting these issues is needed and efforts should be made to try the best combination that suits the requirement of a particular institution. Hospital administrators should strive to create an organizational atmosphere in which adherence to recommended HH practices is considered an integral part for providing high quality health care.

Limitations

Absence of a control group, exclusion of other areas like casualty, operation theatre, wards, etc, small sample size, improvement in compliance due to awareness of being observed after interaction with colleagues who had already participated in the study and absence of interventions at any stage could be some of the limitations of the study.

 
   References Top

1.Pittet D, Hugonnet S, Harbarth S, Mourouga P, Sauvan V, Touveneau S, et al. Effectiveness of a hospital-wide programme to improve compliance with hand hygiene. Infection Control Programme. Lancet 2000;356:1307-12.  Back to cited text no. 1
[PUBMED]  [FULLTEXT]  
2.Albert RK, Condie F. Hand-washing patterns in medical intensive-care units. N Engl J Med 1981;304:1465-6.  Back to cited text no. 2
[PUBMED]  [FULLTEXT]  
3.Ducel G, Fabry J, Nicolle L. Prevention of hospital-acquired infections: A Practical Guide. 2 nd ed. Geneva: World Health Organization, WHO/CDS/CSR/EPH; 2002. p. 12.  Back to cited text no. 3
    
4.Pittet D, Mourouga P, Perneger TV. Compliance with hand washing in a teaching hospital. Infection Control Program. Ann Intern Med 1999;130:126-30.  Back to cited text no. 4
    
5.Maury E, Alzieu M, Baudel JL, Haram N, Barbut F, Guidet B, et al. Availability of an alcohol solution can improve hand disinfection, compliance in an intensive care unit. Am J Respir Crit Care Med 2000;162:324-7.  Back to cited text no. 5
[PUBMED]  [FULLTEXT]  
6.Pittet D, Simon A, Hugonnet S, Pessoa-Silva CL, Sauvan V, Perneger TV. Hand hygiene among physicians: Performance, beliefs and perceptions. Ann Intern Med 2004;141:1-8.  Back to cited text no. 6
[PUBMED]    
7.Rotter ML. Hand washing and hand disinfection. In: Mayhall G, editor. Hospital epidemiology and infection control. Baltimore: Williams and Wilkins; 1996,1052-68.  Back to cited text no. 7
    
8.O'Boyle CA, Henly SJ, Larson E. Understanding adherence to hand hygiene recommendations: The theory of planned behavior. Am J Infect Control 2001;29:352-60.  Back to cited text no. 8
[PUBMED]  [FULLTEXT]  
9.Semmelweis I. The etiology, concept and prophylaxis of childbed fever [excerpts]. In: Buck C, Llopis A, Najera E, Terris M, editors. The challenge of epidemiology-issues and selected readings. Washington: PAHO Scientific Publication; 1988. p. 46-59.  Back to cited text no. 9
    
10.Sahay S, Panja S, Ray S, Rao BK. Diurnal variation in hand hygiene compliance in a tertiary level multidisciplinary intensive care unit. Am J Infect Control 2010;38:535-9.  Back to cited text no. 10
[PUBMED]  [FULLTEXT]  
11.Available from: http://www.cdc.gov/mmwr/PDF/rr/rr5116.pdf. [Last cited on 2009 May 20].  Back to cited text no. 11
    
12.Boyce JM, Pittet D. Healthcare Infection Control Practices Advisory Committee; HICPAC//SHEA/APIC/IDSA Hand Hygiene Task Force. Guideline for Hand Hygiene in Health-Care Settings. Recommendations of the Healthcare Infection Control Practices Advisory Committee and the HICPAC/SHEA/APIC/IDSA Hand Hygiene Task Force. Society for Healthcare Epidemiology of America/Association for Professionals in Infection Control/Infectious Diseases Society of America. MMWR Recomm Rep 2002;51:1-45.  Back to cited text no. 12
    
13.WHO Guidelines on Hand Hygiene in Health Care (Advanced Draft): A Summary. Geneva: WHO; 2005. Available from: http://whqlibdoc.who.int/hq/2005/WHO_EIP_SPO_QPS_05.2.pdf. [Last accessed on 2011 Apr 19].  Back to cited text no. 13
    
14.Mani A, Shubangi AM, Saini R. Hand hygiene among health care workers. Indian J Dental Res 2010;21:115-8.  Back to cited text no. 14
    



 
 
    Tables

  [Table 1], [Table 2], [Table 3], [Table 4]


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