Knowledge and practice of infection prevention and control among healthcare workers: a COVID-19 pandemic experience


Rifat Yasmin, Huma Hussain1 , Syeda Turab Fatima Abidi1 , Syed Asim Ali Shah1 , Tazaeen Hina Kazmi1 , Hina Hussain2
Author affiliations:

1- Department of Medicine, POF Hospital, Quaid Avenue. Wah Cantt, Pakistan.
2- Department of Medicine, PAF Hospital, 14, Munir Road, Munir Chowk, Lahore Cantt, Pakistan.

Correspondence: Dr. Rifat Yasmin; E-mail: rifatyasmin99@yahoo.com; Phone: 03075384549

Abstract
Background: Coronavirus disease (COVID-19) is a global outbreak caused by novel SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2). Study aims to evaluate knowledge and practices of healthcare workers (HCW) regarding infection prevention and control of corona virus disease
Material and methods: A cross sectional validation study was conducted. Study was conducted at department of Medicine, Pakistan Ordinance Factory Hospital, Wah Cantt. Study duration was 2 months (May 2020-June2020)A sample size of 217 HCW was calculated using WHO calculator. HCW were selected through non probability sampling (consecutive). Ethical permission was taken and research consent was signed by each participant. SPSS version 24 was used for analysis purpose. Post stratification fissure exact and chi-square test was applied. We found p value ≤0.05 as statistically significant.
Results: Total 217 HCW were included in our study. Out of them, 85 (39.2%) were male and 132 (60.8%) were female in our study. Mean age of HCW was 34.5±2.4SD. In knowledge assessment majority of HCW had fair knowledge (46.5%), followed by good (30%) and poor knowledge (23.5%) regarding corona virus associated infection control and prevention. In practice assessment, among all those, 38.2% HCW showed better practices while 61.8% showed poor practices. Knowledge is significantly associated with virus transmission mode (p = 0.00), close contact (p = 0.000), protection from COVID-19 in triage area (p = 0.000), wearing PPE (p = 0.000) etc.
Conclusion: Corona virus disease is a major challenge in resource limited countries. Healthcare workers showed relatively improved knowledge and practices regarding infection prevention and control in this COVID-19 Pandemic.
Key words: Corona virus disease, Healthcare workers, Infection Prevention and Control, Knowledge, Practices
Citation: Yasmin R, Hussain H, Abidi STF, Shah SAA, Kazmi TH, Hussain H. Knowledge and practice of infection prevention and control among healthcare workers: a COVID-19 pandemic experience. Anaesth pain intensive care 2020;24 (6):596-602;

DOIhttps://doi.org/10.35975/apic.v24i6.1408
Received: 8 November 2020, Reviewed: 17 November 2020, Accepted: 19 November 2020

Introduction
Corona virus disease (COVID-19) is a global outbreak caused by novel SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2).1 World Health Organization (WHO) reported that coronavirus is an emerging viral disease and serious public health issue as early as November 2019. First case of COVID-19 appeared in Wuhan (China) in December 2019. WHO declared coronavirus disease as 6th public health emergency in January 2020.2 COVID-19 is a third global outbreak affecting more than 209 countries including lower middle income countries like Pakistan.3 In Pakistan first case of coronavirus was confirmed by Ministry of Health on 26 February, 2020, in Karachi. According to Government of Pakistan, on 6th April 2020, there were 3277 confirmed COVID-19 cases.4 Several healthcare workers (HCW) are working in this deadly scenario to bring back life and prevent number of confirmed cases in Pakistan.
COVID-19 emerged as infectious disease and present unique challenge to healthcare providers. Literature reported that threat to frontline responders in this pandemic is due to limited understanding of emerging pathogen transmission dynamics. Moreover, healthcare providers understanding and skills vary according to their knowledge and practices. During this pandemic, transmission of virus from patients to healthcare personal is very common in healthcare setting.5. Evidence exist that human to human transmission of corona virus is associated with contact of infectious respiratory mucosae droplets6. Center for disease control and prevention (CDC) reported infection prevention and control (IPC) guidelines regarding coronavirus disease depending upon virus transmissibility, viral shedding and other characteristics of virus7.
Adequate knowledge, positive attitude and safe practices are required for controlling this pandemic disease. Lack of knowledge among HCW is responsible for excessive spread of this COVID-19. A study conducted in Nepal showed that HCW had good to moderate knowledge (82.15%) and practice (83.57%). However, they reported a significant association between knowledge and practice scores regarding COVID-19 among HCW and their job description (p = 0.000)8. Modi et al. reported that 45.4% respondents had awareness regarding mask application while 52.5% were aware of hand hygiene9. COVID-19 is a global threat, so its very important to improve knowledge and practices of HCW in Pakistan. Present study aims to evaluate knowledge and practices of HCW regarding IPC of corona virus disease.

Methodology
A cross-sectional study was conducted at our hospital for 2 months (May 2020-July 2020). A sample size of 217 was calculated using 82%8 frequency of good knowledge among HCW, 5% absolute precision, 95% confidence interval using WHO calculator. Selection of HCW was done using non-probability consecutive sampling. Research approval was taken from ethical review committee of POF hospital. All participating HCW signed consent forms before participation in study. Inclusion criteria was based upon age >18 yrs, both genders, and employees of POF Hospital (doctors, nurses and other paramedical staff). HCW who were not willing to participate and those COVID-19 positive were excluded. A structured questionnaire was used using European Center for Disease Control and Prevention (ECDC) guidelines,10 based upon demographic, knowledge (11 items) and practices (7items) questions were administered online and via mobile phone. We scored the positive answers as 1 and negative answers as 0 (more than 1 positive answers within one question were also scored 1). Scores 11-9 were categorized as good knowledge, 8-6 as fair knowledge and < 6 as poor knowledge. Scores > 4 in practice section were categorized as better practice and < 4 as poor practice.
SPSS version 24 was used for analysis purpose. Nominal and categorical data were analyzed in terms of frequency and percentages, while descriptive statistics were presented in terms of mean and standard deviation. We controlled effect modifiers like age and gender using stratification process. Post stratification fissure exact and chi-square test were applied to observe association between knowledge, practices and other independent variables. Results with p ≤ 0.05 were considered statistically significant.

Results
A total of 217 HCW were included in our study. There were 85 (39.2%) males and 132 (60.8%) females in our study. Mean age of HCW was 34.5 ± 2.4 yrs. 182 (83.9%) HCW were in age group 20-40 years, 33 (15.2%) were in 40-60 years age group and 2 (0.9%) had age > 60 years. There were 140 (64.5%) doctors, 57 (26.3%) nurses and 20 (9.2%) paramedical staff. Designations of doctors included house officers 37 (17.1%), postgraduate trainees / medical officers 51 (23.5%), consultants / senior registrars / assistant / associate professors / professor 47 (21.7%), nurses 56 (25.8%), and paramedics 26 (12%). The participants belonged to emergency 31 (14.3%), critical care unit 30 (13.8%), general ward 83 (38.2%), COVID Ward/Corona desk 28 (12.9%), diagnostic 12 (5.5%) and others 33 (15.2%). Infection control training had been taken by 120 (55.3%) HCW during the past three years; while 144 (66.4%) of them were aware of donning and doffing technique regarding personal protective measure usage.
Knowledge regarding corona virus associated IPC is shown in Figure 1, and grading of practices regarding IPC of COVID-19 is shown in Figure 2.

A6-Fig1

A6-Fig2

Majority of HCW who answered correct regarding SARS-CoV-2 virus transmission had fair knowledge as compared to those who answered wrong (31.8% vs 14.7%, p = 0.00). Majority of HCW who answered correct regarding close contact had fair knowledge regarding IPC of COVID-19 as compared to those who answered wrong (p = 0.000). Majority of HCW had good knowledge regarding protection from COVID-19 in triage area followed by fair and poor knowledge (27.2%, 22.1% ad 4.1% respectively, p = 0.000). Majority of HCW fairly know about wearing PPE for transportation of COVID-19 patients (p = 0.000). Preferred method of hand hygiene and most effective method for prevention of COVID-19 is insignificantly associated with knowledge of HCW (p>0.05) as shown in Table 1.
Out of all, 15 (6.9%) had good knowledge regarding nasopharyngeal swab taking of COVID-19 patients in closed room (p = 0.007). HCW had good knowledge regarding COVID-19 patient placement in closed room (p = 0.000), fair knowledge regarding aerosol generating procedure in healthcare facilities (p = 0.000) and had fair knowledge regarding aerosol generating procedure performance in airborne isolation room (p = 0.000) as shown in Table 1.
Out of all, 31.3% HCW showed better hand hygiene practice (p = 0.000), 44 (20.3%) always removed PPE carefully (p = 0.000), 35 (16.1%) covered their mouth during cough and sneezing with tissue or handkerchief (p = 0.002), 30 (13.8%) maintained quarantine with their family members (p = 0.01) and 83 (38.2%) avoided overcrowding in emergency (p = 0.000), 22.1% showed better practice of removing mask correctly (p = 0.000), and 31 (14.3%) were practicing social distance at least 1 meter as shown in Table 2. Age and gender showed insignificant association with knowledge and practices (p > 0.05).
Among all the HCW, 18.9% doctors reported good knowledge, 8.3% nurses showed good knowledge and 2.8% paramedical staff had good knowledge (p = 0.03). Among all the HCW, 26.3% doctors, 9.7% nurses and 2.3% paramedical staff showed better practices (p = 0.01) as shown in Table 3. We found good knowledge among HCW of COVID-19 ward/corona desk, followed by general ward (medicine, surgery & allied), critical care unit and emergency department (p = 0.000). Better practices were reported by Corona and general wards HCW followed by critical care units, emergency department and diagnostics (p = 0.000).

Table 1: Knowledge level in HCW regarding IPC of COVID-19. Data given as n(%).
No. Questions Wrong / Correct Knowledge Total p-value
Poor fair good
1 Mode of SARS CoV-2 virus transmission Wrong 21 (9.7) 32 (14.7) 10 (4.6) 63 (29) 0.00
Correct 30 (13.8) 69 (31.8) 55 (25.3) 154 (71)
2 Definition of close contact Wrong 45 (20.7) 77 (35.5) 24 (11.1) 146 (67.3) 0.000
Correct 6 (2.8) 24 (11.1) 41 (18.9) 71 (32.7)
3 Preferred method of hand hygiene Wrong 12 (5.5) 22 (10.1) 2 (5.5) 46 (21.2) 0.787
Correct 39 (18) 79 (36.4) 53 (24.4) 171 (78.8)
4 Most effective method for prevention of COVID -19 Wrong 3 (1.4) 3 (1.4) 0 (0) 6 (2.8) 0.157
Correct 48 (22.1) 98 (45.2) 65 (30) 211 (97.2)
5 Measures for protection Of HCW from COVID-19 in triage area Wrong 42 (19.4) 53 (24.4) 6 (2.8) 101 (46.5) 0.000
Correct 9 (4.1) 48 (22.1) 59 (27.2) 116 (53.5)
6 Type of PPE worn by HCW for transportation of COVID-19 Patient Wrong 30 (13.8) 15 (6.9) 3 (1.4) 48 (22.1) 0.000
Correct 21 (9.7) 86 (39.6) 62 (28.6) 169 (77.9)
7 PPE worn by HCW for nasopharyngeal swab Wrong 30 (13.8) 9 (4.1) 2 (0.9) 41 (18.9) 0.000
Correct 21 (9.7) 92 (42.4) 63 (29) 176 (81.1)
8 Nasopharyngeal swab of COVID-19 patients taken in closed room Wrong 48 (22.1) 92 (42.4) 50 (23) 190 (87.6) 0.007
Correct 3 (1.4) 9 (4.1) 15 (6.9) 27 (12.4)
9 COVID-19 confirmed patients should be placed in closed room Wrong 33 (15.2) 93 (42.9) 45 (20.7) 171 (78.8) 0.000
Correct 18 (8.3) 8 (3.7) 20 (9.2) 46 (21.2)
10 Aerosol generating procedures in healthcare facilities Wrong 21 (9.7) 9 (4.1) 3 (1.4) 33 (15.2) 0.000
Correct 30 (13.8) 92 (42.4) 62 (28.6) 184 (84.8)
11 Aerosol generating procedures in COVID-19 patients should be performed in airborne isolation room Wrong 21 (9.7) 15 (6.9) 0 (0) 36 (16.6) 0.000
Correct 30 (13.8) 86 (39.6) 65 (30) 181 (83.4)
.

Table 2: Grading of practices of HCW regarding IPC in COVID -19. Data given as n (%).
No. Practices Yes/No Grade Total p- value
Poor Better
1 Hand hygiene No 75 (34.6) 15 (6.9) 90 (41.5) 0.000
Yes 59 (27.2) 68 (31.3) 127 (58.5)
2 Always remove PPE carefully No 119 (54.8) 39 (18) 158 (72.8) 0.000
Yes 15 (6.9) 44 (20.3) 59 (27.2)
3 While coughing and sneezing do you cover your mouth with elbow, tissue or handkerchief No 105 (48.4) 48 (22.1) 153 (70.5) 0.002
Yes 29 (13.4) 35 (16.1) 64 (29.5)
4 Maintain Quarantine with Family No 107 (49.3) 53 (24.4) 160 (73.7) 0.01
Yes 27 (12.4) 30 (13.8) 57 (26.3)
5 Avoid overcrowding in emergency No 48 (22.1) 0 (0) 48 (22.1) 0.000
Yes 86 (39.6) 83 (38.2) 169 (77.9)
6 Do you remove mask correct No 109 (50.2) 35 (16.1) 144 (66.4) 0.000
Yes 25 (11.5) 48 (22.1) 73 (33.6)
7 Are you practicing social distancing of at least 1 meter No 134 (61.8) 52 (24) 186 (85.7) 0.000
Yes 0 (0) 31 (14.3) 31 (14.3)
.

Table 3: Association between occupation, knowledge and practices of HCW. Data given as n (%). 
Parameter Grade Doctors Nurses Paramedical staff Total p-value
Knowledge Poor 36 (16.6) 11 (5.1) 4 (1.8) 51 (23.5) 0.03
Fair 63 (29) 28 (12.9) 10 (4.6) 101 (46.5)
Good 41 (18.9) 18 (8.3) 6 (2.8) 65 (30)
Practice Poor 83 (38.2) 36 (16.6) 15 (6.9) 134 (61.8) 0.01
Better 57 (26.3) 21 (9.7) 5 (2.3) 83 (38.2)
Total 140 (64.5) 57 (26.3) 20 (9.2) 217 (100)
.

Discussion
Corona virus disease is an emerging global health challenge leading towards ever-increasing mortality.11 HCW are more prone to acquire COVID-19 as compared to general population.12 So it is very important for HCW to understand clinical manifestation of disease, differential diagnosis, prevention, and treatment strategies. There is a need to improve their knowledge level and practices regarding COVID-19.
In the present study, majority of HCW had fair knowledge (46.5%) regarding IPC of corona virus. Olum et al. reported that mean knowledge scores among HCW regarding COVID-19 were 82.4% in Sub-Saharan Africa and Uganda.13 Huynh et al.14 reported that mean knowledge scores were 8.17 ± 1.3, while majority of HCW had appropriate knowledge regarding mode of transmission, isolation period and protective distance similar to our study. In our study 25.3% HCW had good knowledge regarding mode of transmission. However, Ashafi & Cheng reported in a South Korean study that HCW had poor knowledge regarding transmission of corona virus.15,16
In ours study, 38.2% HCW showed better practices regarding infection control and prevention of COVID-19. Zhang et al. reported that 89.7% of healthcare professionals followed correct practices; however, their practices were associated with working time, experience and other hospital based factors.17 Murthy et al.18 reported that HCW are less likely to maintain quarantine with family similar to our study. In our study, 31.3% HCW showed better practices regarding hand hygiene while Jiang et al. reported that overworking nurses were less likely to wash hands as compared to less working nurses.19 Another similar study reported that majority of health workers were participating in training sessions.20 However, in our study only 16.1% showed better practice of training session. We found 38.2% of HCW avoided overcrowding in emergency department, while Radanovich et al. reported that HCW found overcrowding as major barrier for infection control and prevention during corona pandemic.21

Limitations
Online questionnaire based survey limits generalization of any study due to recall bias.

Strengths
It’s a unique study in resource limited country like Pakistan where corona virus is considered as a myth more than a disease. As second peak of corona virus is currently in full swing, this paper might help to understand knowledge level of HCW, so that necessary steps are taken for further improvements by the authorities concerned.

Conclusion
Corona virus disease is a major challenge in resource limited countries. Healthcare workers in our hospital showed relatively improved knowledge and good practices regarding infection prevention and control in COVID-19 pandemic. We recommend continual professional educational sessions for healthcare workers to further improve their knowledge and practices regarding corona virus disease.

Conflict of interests
None declared by the authors.

Authors’ contribution
All authors took equal part in the conduct of this study and preparation of the manuscript.

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