Hand hygiene behavior: translating behavioral research into infection control practice

Do task and item difficulty affect overestimation of one's hand hygiene compliance? A cross-sectional survey of physicians and nurses in surgical clinics of six hospitals in Germany

BACKGROUND

One barrier to hand hygiene compliance is overestimation of one's own performance. Overconfidence research shows that overestimation tends to be higher for difficult tasks, which suggests that the magnitude of overestimation also depends on how it is assessed. Thus, we tested the hypothesis that overestimation was stronger for hand hygiene indications with low compliance (i.e., high difficulty), and the hypothesis that self-reported overall compliance based on a single item is higher than based on "5 Moments of Hand Hygiene" (WHO-5) items, since the single item implies an aggregation across indications.

METHODS

In the WACH trial (German Clinical Trials Register [DRKS] ID: DRKS00015502), a questionnaire survey was conducted among physicians and nurses in nine surgical clinics (general/visceral surgery or orthopedics/trauma surgery) of six German hospitals. Self-reported compliance was assessed both by a single item and the WHO-5-items using percentage scales. These were compared with each other and with direct observations. Relative frequencies of the WHO-5 indications used to calculate the WHO-5-based self-reported overall compliance rate were estimated by a systematized review of the literature (see appendix). In analysis, t-tests, Chi²-tests and multiple linear regressions were used.

RESULTS

Ninety-three physicians (response rate: 28.4%) and 225 nurses (30.4%) participated. Significant compliance differences between physicians and nurses were found for direct observations and were in favor of nurses, while no such differences were found for self-reports. Across the WHO-5, overestimation showed inverse correlations with observed compliance (physicians: r = -0.88, p = 0.049; nurses: r = -0.81, p = 0.093). Support for the hypothesis that the self-reported overall compliance based on one item is higher than that based on WHO-5 items was found for physicians (M = 87.2 vs. 84.1%, p = 0.041; nurses: 84.4 vs. 85.5%, p = 0.296). Exploratory analyses showed that this effect was confined to orthopedic/trauma surgeons (89.9 vs. 81.7%, p = 0.006).

CONCLUSION

Among physicians, results indicate stronger hand hygiene overestimation for low-compliance indications, and when measurements are based on a single item versus the five WHO-5 items. For practice, results contribute to infection prevention and control's understanding of overestimation as a psychological mechanism that is relevant to professional hand hygiene.

Preventive Behavioral Insights for Emerging Adults: A Survey during the COVID-19 Pandemic

Emerging adulthood is an important period for establishing health behavior patterns in life. This study aimed to examine factors related to preventive behaviors of emerging adults during the COVID-19 pandemic. A descriptive online survey design was used. Data were collected using a self-administrated, 28-item questionnaire completed by 239 undergraduate students from a university in Seoul, South Korea. The questionnaire was developed based on previous studies and the guidelines of the World Health Organization about COVID-19 preventive behaviors. The mean age of participants was 21.97 years, and the average score for COVID-19 preventive behaviors was 4.13 (SD: ±0.42) on a 5-point scale. Hierarchical regression analyses revealed that subjective norms related to parents (β = 0.425, p < 0.001), issue involvement related to COVID-19 (β = 0.160, p = 0.024), and sex (β = 0.137, p = 0.029) were significant factors related to preventive behaviors of emerging adults after controlling for demographic characteristics. The variables explained 20.1% of the variance in preventive behaviors. The results of this study suggest that better strategies for subjective norms related to parents and issue involvement related to COVID-19 must be considered to improve emerging adults’ preventive behaviors.

Hand(y) hygiene insights: Applying three theoretical models to investigate hospital patients' and visitors' hand hygiene behavior

BACKGROUND

Improving hand hygiene in hospitals is the most efficient method to prevent healthcare-associated infections. The hand hygiene behavior of hospital patients and visitors is not well-researched, although they pose a risk for the transmission of pathogens. Therefore, the present study had three aims: (1) Finding a suitable theoretical model to explain patients' and visitors' hand hygiene practice; (2) Identifying important predictors for their hand hygiene behavior; and (3) Comparing the essential determinants of hand hygiene behavior between healthcare professionals from the literature to our non-professional sample.

METHODS

In total N = 1,605 patients and visitors were surveyed on their hand hygiene practice in hospitals. The employed questionnaires were based on three theoretical models: a) the Theory of Planned Behavior (TPB); b) the Health Action Process Approach (HAPA); and c) the Theoretical Domains Framework (TDF). Structural equation modeling was used to analyze the data. To compare our results to the determinants of healthcare workers' hand hygiene behavior, we searched for studies that used one of the three theoretical models.

RESULTS

Among patients, 52% of the variance in the hand hygiene behavior was accounted for by the TDF domains, 44% by a modified HAPA model, and 40% by the TPB factors. Among visitors, these figures were 59%, 37%, and 55%, respectively. Two clusters of variables surfaced as being essential determinants of behavior: self-regulatory processes and social influence processes. The critical determinants for healthcare professionals' hand hygiene reported in the literature were similar to the findings from our non-professional sample.

CONCLUSIONS

The TDF was identified as the most suitable model to explain patients' and visitors' hand hygiene practices. Patients and visitors should be included in existing behavior change intervention strategies. Newly planned interventions should focus on targeting self-regulatory and social influence processes to improve effectiveness.

Healthcare Workers' Knowledge and Attitudes Regarding the World Health Organization's "My 5 Moments for Hand Hygiene": Evidence From a Vietnamese Central General Hospital

Objectives:

Although the World Health Organization (WHO) initiative “My 5 Moments for Hand Hygiene” has been lauded as effective in preventing hospital-associated infections, little is known about healthcare workers (HCWs)’ hand hygiene behavior. In this study, we sought to assess knowledge and attitudes towards the concepts in this initiative, as well as associated factors, among Vietnamese HCWs at a general hospital.

Methods:

A structured questionnaire was administered to HCWs at a central Vietnamese general hospital in 2015. Multiple logistic regression analysis was used to identify factors associated with HCWs’ knowledge and attitudes towards hand hygiene.

Results:

Of 120 respondents, 65.8% and 67.5% demonstrated appropriate knowledge and a positive attitude, respectively, regarding all 5 hand hygiene moments. Logistic regression indicated better knowledge of hand hygiene in workers who were over 30 years old, who were direct HCWs (rather than managers), who had frequent access to clinical information, and who received their clinical information from training. Those who worked in infectious and tropical disease wards, who had frequent access to clinical information, and who received information from training were more likely to have a positive attitude towards hand hygiene than their counterparts.

Conclusions:

Although many Vietnamese HCWs displayed moderate knowledge and positive attitudes towards the WHO hand hygiene guidelines, a key gap remained. Regular education and training programs are needed to increase knowledge and to improve attitudes and practices towards hand hygiene. Furthermore, a combination of multimodal strategies and locally-adapted interventions is needed for sustainable hand hygiene adherence.

Handrubbing with sprayed alcohol-based hand rub: an alternative method for effective hand hygiene

BACKGROUND

Hand hygiene is crucial in infection prevention and control. It is unclear whether sprayed alcohol-based hand rub (ABHR) is non-inferior to the World Health Organization (WHO)-recommended method of handrubbing with poured ABHR.

AIM

To test whether sprayed ABHR can be an alternative (non-inferior) method for effective hand hygiene with/without handrubbing.

METHODS

A laboratory experiment was conducted with ABHR (isopropanol 60% v/v) according to European Norm 1500. Hand hygiene was performed by: (1) handrubbing with ABHR poured on to the palm of the hand; (2) handrubbing with sprayed ABHR; and (3) applying sprayed ABHR to hands without handrubbing. Hands were contaminated with Escherichia coli ATCC 10536, followed by hand hygiene and microbiological sampling. A generalized linear mixed model with a random intercept per subject was used to analyse the reduction in bacterial count following hand hygiene.

FINDINGS

In total, 19 healthcare workers participated in the study. Handrubbing with sprayed ABHR was non-inferior [margin log₁₀ 0.6 colony-forming units (cfu)/mL] to the WHO-recommended method of handrubbing with poured ABHR; bacterial count reductions were log₁₀ 3.66 cfu/mL [95% confidence interval (CI) 1.68-5.64] and log₁₀ 3.46 cfu/mL (95% CI 1.27-5.65), respectively. Conversely, non-inferiority was not found for sprayed ABHR without handrubbing [bacterial count reduction log₁₀ 2.76 cfu/mL (95% CI 1.65-3.87)].

CONCLUSION

Handrubbing with sprayed ABHR was non-inferior to handrubbing with ABHR poured on to the palm of the hand to reduce bacterial counts on hands under experimental conditions. Handrubbing with sprayed ABHR may be an acceptable alternative hand hygiene method pending assessment in other settings and for other pathogens.

How a smiley protects health: A pilot intervention to improve hand hygiene in hospitals by activating injunctive norms through emoticons

Hand hygiene practice in hospitals is unfortunately still widely insufficient, even though it is known that transmitting pathogens via hands is the leading cause of healthcare-associated infections. Previous research has shown that improving knowledge, providing feedback on past behaviour and targeting social norms are promising approaches to improve hand hygiene practices. The present field experiment was designed to direct people on when to perform hand hygiene and prevent forgetfulness. This intervention is the first to examine the effect of inducing injunctive social norms via an emoticon-based feedback system on hand hygiene behaviour. Electronic monitoring and feedback devices were installed in hospital patient rooms on top of hand-rub dispensers, next to the doorway, for a period of 17 weeks. In the emoticon condition, screens at the devices activated whenever a person entered or exited the room. Before using the alcohol-based hand-rub dispenser, a frowny face was displayed, indicating that hand hygiene should be performed. If the dispenser was subsequently used, this picture changed to a smiley face to positively reinforce the correct behaviour. Hand hygiene behaviour in the emoticon rooms significantly outperformed the behaviour in three other tested conditions. The strong effect in this field experiment indicates that activating injunctive norms may be a promising approach to improve hand hygiene behaviour. Theoretical and practical implications of these findings are discussed.

Interventions to Reduce the Incidence of Hospital-Onset Clostridium difficile Infection: An Agent-Based Modeling Approach to Evaluate Clinical Effectiveness in Adult Acute Care Hospitals

Background

Despite intensified efforts to reduce hospital-onset Clostridium difficile infection (HO-CDI), its clinical and economic impacts continue to worsen. Many institutions have adopted bundled interventions that vary considerably in composition, strength of evidence, and effectiveness. Considerable gaps remain in our knowledge of intervention effectiveness and disease transmission, which hinders HO-CDI prevention.

Methods

We developed an agent-based model of C. difficile transmission in a 200-bed adult hospital using studies from the literature, supplemented with primary data collection. The model includes an environmental component and 4 distinct agent types: patients, visitors, nurses, and physicians. We used the model to evaluate the comparative clinical effectiveness of 9 single interventions and 8 multiple-intervention bundles at reducing HO-CDI and asymptomatic C. difficile colonization.

Results

Daily cleaning with sporicidal disinfectant and C. difficile screening at admission were the most effective single-intervention strategies, reducing HO-CDI by 68.9% and 35.7%, respectively (both P < .001). Combining these interventions into a 2-intervention bundle reduced HO-CDI by 82.3% and asymptomatic hospital-onset colonization by 90.6% (both, P < .001). Adding patient hand hygiene to healthcare worker hand hygiene reduced HO-CDI rates an additional 7.9%. Visitor hand hygiene and contact precaution interventions did not reduce HO-CDI, compared with baseline. Excluding those strategies, healthcare worker contact precautions were the least effective intervention at reducing hospital-onset colonization and infection.

Conclusions

Identifying and managing the vast hospital reservoir of asymptomatic C. difficile by screening and daily cleaning with sporicidal disinfectant are high-yield strategies. These findings provide much-needed data regarding which interventions to prioritize for optimal C. difficile control.

Electronic monitoring in combination with direct observation as a means to significantly improve hand hygiene compliance

Monitoring hand hygiene compliance among health care personnel (HCP) is an essential element of hand hygiene promotion programs. Observation by trained auditors is considered the gold standard method for establishing hand hygiene compliance rates. Advantages of observational surveys include the unique ability to establish compliance with all of the World Health Organization "My 5 Moments for Hand Hygiene" initiative Moments and to provide just-in-time coaching. Disadvantages include the resources required for observational surveys, insufficient sample sizes, and nonstandardized methods of conducting observations. Electronic and camera-based systems can monitor hand hygiene performance on all work shifts without a Hawthorne effect and provide significantly more data regarding hand hygiene performance. Disadvantages include the cost of installation, variable accuracy in estimating compliance rates, issues related to acceptance by HCP, insufficient data regarding their cost-effectiveness and influence on health care-related infection rates, and the ability of most systems to monitor only surrogates for Moments 1, 4, and 5. Increasing evidence suggests that monitoring only Moments 1, 4, and 5 provides reasonable estimates of compliance with all 5 Moments. With continued improvement of electronic monitoring systems, combining electronic monitoring with observational methods may provide the best information as part of a multimodal strategy to improve and sustain hand hygiene compliance rates among HCP.

Testing Nursing Competence: Validity and Reliability of the Nursing Performance Profile

Background and Purpose: There is growing evidence that simulation testing is appropriate for assessing nursing competence. We compiled evidence on the validity and reliability of the Nursing Performance Profile (NPP) method for assessing competence. Methods: Participants (N = 67) each completed 3 high-fidelity simulation tests; raters (N = 31) scored the videotaped tests using a 41-item competency rating instrument. Results: The test identified areas of practice breakdown and distinguished among subgroups differing in age, education, and simulation experience. Supervisor assessments were positively correlated, r = .31. Self-assessments were uncorrelated, r = .07. Inter-rater agreement ranged from 93% to 100%. Test–retest reliability ranged from r = .57 to .69. Conclusions: The NPP can be used to assess competence and make decisions supporting public safety.

Simulation education as a single intervention does not improve hand hygiene practices: A randomized controlled follow-up study

BACKGROUND

To evaluate how critical nurses' knowledge of and adherence to current care hand hygiene (HH) guidelines differ between randomly allocated intervention and control groups before and after simulation education in both a simulation setting and clinical practice during a 2-year follow-up period. It was hypothesized that intervention group knowledge of and adherence to current HH guidelines might increase compared with a control group after simulation education.

METHODS

A prospective, parallel, randomized controlled trial with repeated measurements was conducted in a 22-bed adult mixed medical-surgical intensive care unit in Oulu, Finland. Thirty out of 40 initially randomized critical care nurses participated in the baseline measurements; of these, 17 completed all the study procedures. Participants' HH adherence was observed only in high-risk contact situations prior to and postendotracheal suctioning events using a direct, nonparticipatory method of observation. Participants' HH knowledge was evaluated at the end of each observational session.

RESULTS

The overall HH adherence increased from a baseline value of 40.8% to 50.8% in the final postintervention measurement at 24 months (P = .002). However, the linear mixed model did not identify any significant group (P = .77) or time-group interactions (P = .17) between the study groups after 2 years of simulation education. In addition, simulation education had no impact on participants' HH knowledge.

CONCLUSIONS

After a single simulation education session, critical care nurses' knowledge of and adherence to current HH guidelines remained below targeted behavior rates.

Observation for assessment of clinician performance: a narrative review

BACKGROUND

Video recorded and in-person observations are methods of quality assessment and monitoring that have been employed in high risk industries. In the medical field, observations have been used to evaluate the quality and safety of various clinical processes. This review summarises studies utilising video recorded or in-person observations for assessing clinician performance in medicine and surgery.

METHODS

A search of MEDLINE (PubMed) was conducted using a combination of medical subject headings (MeSH) terms. Articles were included if they described the use of in-person or video recorded observations to assess clinician practices in three categories: (1) teamwork and communication between clinicians; (2) errors and weaknesses in practice; and (3) compliance and adherence to interventions or guidelines.

RESULTS

The initial search criteria returned 3215 studies, 223 of which were identified for full text review. A total of 69 studies were included in the final set of literature. Observations were most commonly used in data dense and high risk environments, such as the emergency department or operating room. The most common use was for assessing teamwork and communication factors.

CONCLUSIONS

Observations are useful for the improvement of healthcare delivery through the identification of clinician lapses and weaknesses that affect quality and safety. Limitations of observations include the Hawthorne effect and the necessity of trained observers to capture and analyse the notes or videos. The comprehensive, subtle and sensitive information observations provided can supplement traditional quality assessment methods and inform targeted interventions to improve patient safety and the quality of care.

Learning before leaping: integration of an adaptive study design process prior to initiation of BetterBirth, a large-scale randomized controlled trial in Uttar Pradesh, India

Background

Pragmatic and adaptive trial designs are increasingly used in quality improvement (QI) interventions to provide the strongest evidence for effective implementation and impact prior to broader scale-up. We previously showed that an on-site coaching intervention focused on the World Health Organization Safe Childbirth Checklist (SCC) improved performance of essential birth practices (EBPs) in one facility in Karnataka, India. We report on the process and outcomes of adapting the intervention prior to larger-scale implementation in a randomized controlled trial in Uttar Pradesh (UP), India.

Methods

Initially, we trained a local team of physicians and nurses to coach birth attendants in SCC use at two public facilities for 4–6 weeks. Trained observers evaluated adherence to EBPs before and after coaching. Using mixed methods and a systematic adaptation process, we modified and strengthened the intervention. The modified intervention was implemented in three additional facilities. Pre/post-change in EBP prevalence aggregated across facilities was analyzed.

Results

In the first two facilities, limited improvement was seen in EBPs with the exception of post-partum oxytocin. Checklists were used <25 % of observations. We identified challenges in physicians coaching nurses, need to engage district and facility leadership to address system gaps, and inadequate strategy for motivating SCC uptake. Revisions included change to peer-to-peer coaching (nurse to nurse, physician to physician); strengthened coach training on behavior and system change; adapted strategy for effective leadership engagement; and an explicit motivation strategy to enhance professional pride and effectiveness. These modifications resulted in improvement in multiple EBPs from baseline including taking maternal blood pressure (0 to 16 %), post-partum oxytocin (36 to 97 %), early breastfeeding initiation (3 to 64 %), as well as checklist use (range 32 to 88 %), all p < 0.01. Further adaptations were implemented to increase the effectiveness prior to full trial launch.

Conclusions

The adaptive study design of implementation, evaluation, and feedback drove iterative redesign and successfully developed a SCC-focused coaching intervention that improved EBPs in UP facilities. This work was critical to develop a replicable BetterBirth package tailored to the local context. The multi-center pragmatic trial is underway measuring impact of the BetterBirth program on EBP and maternal-neonatal morbidity and mortality.

Trial registration

Clinical trials identifier: NCT02148952.

Applying psychological frameworks of behaviour change to improve healthcare worker hand hygiene: a systematic review

BACKGROUND

Despite the importance of hand hygiene in preventing transmission of healthcare-associated infections, compliance rates are suboptimal. Hand hygiene is a complex behaviour and psychological frameworks are promising tools to influence healthcare worker (HCW) behaviour.

AIM

(i) To review the effectiveness of interventions based on psychological theories of behaviour change to improve HCW hand hygiene compliance; (ii) to determine which frameworks have been used to predict HCW hand hygiene compliance.

METHODS

Multiple databases and reference lists of included studies were searched for studies that applied psychological theories to improve and/or predict HCW hand hygiene. All steps in selection, data extraction, and quality assessment were performed independently by two reviewers.

FINDINGS

The search yielded 918 citations; seven met eligibility criteria. Four studies evaluated hand hygiene interventions based on psychological frameworks. Interventions were informed by goal setting, control theory, operant learning, positive reinforcement, change theory, the theory of planned behaviour, and the transtheoretical model. Three predictive studies employed the theory of planned behaviour, the transtheoretical model, and the theoretical domains framework. Interventions to improve hand hygiene adherence demonstrated efficacy but studies were at moderate to high risk of bias. For many studies, it was unclear how theories of behaviour change were used to inform the interventions. Predictive studies had mixed results.

CONCLUSION

Behaviour change theory is a promising tool for improving hand hygiene; however, these theories have not been extensively examined. Our review reveals a significant gap in the literature and indicates possible avenues for novel research.

Behavior-based interventions to improve hand hygiene adherence among intensive care unit healthcare workers in Thailand

OBJECTIVE

To evaluate behavioral-based interventions to improve hand hygiene (HH) among healthcare workers (HCWs) at a Thai tertiary care center.

METHODS

A quasi-experimental study was performed in 6 intensive care units with computer-generated allocation. Baseline demographic characteristics, self-reported stage of HH behavioral commitment, and observed HH adherence were examined from January 1, 2012, through December 31, 2012 (preintervention), and from January 1, 2013, through December 31, 2013 (postintervention). Self-reported HH was categorized by the stages construct from the Transtheoretical Model of Health Behavior Change. The intensive care unit group randomization was to either standard-of-care HH education every 3 months (S1), intensified HH interventions (S2), or intensified HH interventions plus increased availability of alcohol-based handrub throughout the unit (S3).

RESULTS

Among 125 HCWs from 6 intensive care units (42 in S1, 41 in S2, 42 in S3) there were 1,936 total HH observations; most HCWs (100 [ 80%]) were nurses or nurse assistants. Compared with preintervention, overall postintervention HH adherence improved in HCWs assigned to S2 (65% vs 85%; P=.02) and S3 (66% vs 95%; P=.005) but not S1 (68% vs 71%; P=.84). Improvement in HH adherence was demonstrated among HCWs who reported lower stages of HH commitment in S2 (21% vs 84%; P<.001) and S3 (24% vs 89%; P<.001) and in HCWs who self-reported higher stages of commitment in S3 (78% vs 96%; P<.001).

CONCLUSIONS

HCW HH programs may benefit from stage-based tailored strategies to promote sustained HH adherence.