Scholarly article on topic 'Assessing the overuse of antibiotics in children in Saudi Arabia: validation of the parental perception on antibiotics scale (PAPA scale)'

Assessing the overuse of antibiotics in children in Saudi Arabia: validation of the parental perception on antibiotics scale (PAPA scale) Academic research paper on "Clinical medicine"

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Academic research paper on topic "Assessing the overuse of antibiotics in children in Saudi Arabia: validation of the parental perception on antibiotics scale (PAPA scale)"



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Assessing the overuse of antibiotics in children in Saudi Arabia: validation of the parental perception on antibiotics scale (PAPA scale)

Arwa Alumran1,2,3", Xiang-Yu Hou1,2 and Cameron Hurst1


Background: Antibiotics overuse is a global public health issue influenced by several factors, of which some are parent-related psychosocial factors that can only be measured using valid and reliable psychosocial measurement instruments. The PAPA scale was developed to measure these factors and the content validity of this instrument was assessed.

Aim: This study further validated the recently developed instrument in terms of (1) face validity and (2) construct validity including: deciding the number and nature of factors, and item selection.

Methods: Questionnaires were self-administered to parents of children between the ages of 0 and 12 years old. Parents were conveniently recruited from schools' parental meetings in the Eastern Province, Saudi Arabia. Face validity was assessed with regards to questionnaire clarity and unambiguity. Construct validity and item selection processes were conducted using Exploratory factor analysis.

Results: Parallel analysis and Exploratory factor analysis using principal axis factoring produced six factors in the developed instrument: knowledge and beliefs, behaviours, sources of information, adherence, awareness about antibiotics resistance, and parents' perception regarding doctors' prescribing behaviours. Reliability was assessed (Cronbach's alpha = 0.78) which demonstrates the instrument as being reliable.

Conclusion: The 'factors' produced in this study coincide with the constructs contextually identified in the development phase of other instruments used to study antibiotic use. However, no other study considering perceptions of antibiotic use had gone beyond content validation of such instruments. This study is the first to constructively validate the factors underlying perceptions regarding antibiotic use in any population and in parents in particular.

Keywords: Antibiotics overuse, Psychosocial, Measurement instrument, Reliability, Validity, Exploratory factor analysis, Saudi Arabia


Although antibiotics are targeted to kill or inhibit the growth of bacteria and have no effect on viral agents [1], they are often inappropriately used to treat viral infections such as upper respiratory tract infections (URTIs). URTIs are usually self-limiting and resolve in the same amount of time regardless of antibiotic consumption [2].

* Correspondence: 1Schoolof Public Health & SocialWork, Queensland University of Technology, Victoria Park Rd, Kelvin Grove, Brisbane, QLD 4059, Australia 2Institute of Health and Biomedicallnnovation, Queensland University of Technology, Brisbane, Australia

Fulllist of author information is available at the end of the article

Bio Med Central

Thus, using antibiotics to treat these viral infections is considered misuse or overuse of antibiotics. This misuse/ overuse is common in children [3,4], and is currently considered to be one of the major worldwide public health issues [5-7].

Antibiotics misuse/overuse may cause several problems, for instance: development of antibacterial resistance [8,9], increasing the burden of chronic diseases and rising costs of health services [10], and the development of side effects (e.g. adverse gastrointestinal effects) [11]. These adverse effects are more significant in children according to Simasek [12].

© 2013 Alumran et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.Org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Table 1 Demographic characteristics of study participants


20 - 30 31 - 40 41 - 50 >50

Missing No. of children*

1 child

2 children

3 children

4 children

5 children Missing

Educational level Illiterate

No formaleducation Junior high school High school Diploma or bachelor Higher degrees Missing Employment Unemployed Employed Student Housewife Self-employed Retired Missing Monthly income** Low

Low middle Middle High middle High Missing

Trained in health-related fields

Yes No


Mothers Father Total

N = 167 N = 70 N = 237

(%) (%) (%)

22 (13.2) 0 (0) 22 (9.3)

86 (51.5) 20 (28.6) 106 (44.7)

36 (21.6) 31 (44.3) 67 (28.3)

0 (0) 15 (21.4) 15 (6.3)

23 (13.8) 4 (5.7) 27 (11.4)

43 (26.1) 20 (8.6) 63 (27.0)

49 (29.7) 19 (8.2) 68 (29.2)

57 (34.5) 17(7.3) 74 (31.8)

11 (6.7) 8 (3.4) 19 (8.2)

5 (3.0) 4(1.7) 9 (3.9)

2 (1.2) 2 (2.9) 4(1.7)

2(1.2) 0(0) 2(0.9)

2(1.2) 0(0) 2(0.9)

7(4.2) 7(10.1) 14(6.0)

26 (15.8) 6 (8.7) 32 (13.7)

125 (75.8) 38 (55.1) 163 (13.7)

3(1.8) 18(26.1) 21(9.0)

2(1.2) 1(1.4) 3(1.3)

3(1.8) 2(2.9) 5(2.1)

91(55.5) 55(78.6) 146(62.4)

6 (3.7) 0 (0) 6 (2.6)

56 (34.1) 0 (0) 56 (23.9)

5(3.0) 7(10.0) 12(5.1)

3(1.8) 6(8.6) 9(3.8)

3(1.8) 0(0) 3(1.3)

12(8.0) 9(13.8) 21(9.8)

53 (35.3) 20 (30.8) 73 (34.0)

54 (36.0) 16 (24.6) 70 (32.6) 19(12.7) 12(18.5) 31(14.4) 12(8.0) 8(12.3) 20(9.3) 17(10.2) 5(7.1) 22(9.3)

27 (16.5) 10 (14.7) 37 (15.9) 137 (83.5) 58 (85.3) 195 (84.1) 3(1.8) 2(2.9) 5(2.1)

Table 1 Demographic characteristics of study participants


Geographical background

Eastern region 91 (59.5) 34 (55.7) 125 (58.4)

Western region 13 (8.5) 7 (11.5) 20 (9.3)

Middle region 23 (15.0) 10 (16.4) 33 (15.4)

Northern region 2 (1.3) 3 (4.9) 5 (2.3)

Southern region 24 (15.7) 7 (11.5) 31 (14.5)

Missing 14 (8.4) 9 (12.9) 23 (9.7)

^Children less than 12 years old.

** Income: low: <SR4000 (<$1066), Low middle: SR4000-11,999 ($1,066-3,199), Middle: SR12,000-21,999 ($3,199-5,866), High middle: SR22,000-34,999 ($5,8669,332), High: > SR35,000 (> $9332).

This misuse may be due to reasons related to: patients, parents or guardians, or the medical practitioner. Several studies have discussed the reasons associated with antibiotics overuse. These include: attitudes, beliefs, knowledge of antibiotic use [13-15], behaviours (e.g. over-the -counter medication and self-medication) [5,16,17], patients' perceptions regarding patient-doctor interaction, patient satisfaction, and patients' experience with antibiotics [15,18]. These studies have provided a framework for the development of the Parental Perception on Antibiotics Scale -'The PAPA Scale' [19].

The behaviours associated with the overuse of antibiotics may include antibiotics self-medication and over-the-counter medication. These behaviours specifically are considered a public health issue in many middle-east countries that are similar to Saudi Arabia, geographically and culturally [13,16,17,20]. However, information regarding trends in antibiotic consumption in Saudi Arabia is very limited. Moreover, there are no reports on parents' behaviours regarding antibiotics use among Saudi children, especially those with upper respiratory tract infections (URTIs) [21]. As a result, it is important to measure this psychosocial phenomenon in Saudi Arabia.

In order to measure such psychosocial phenomena, a valid and reliable measurement instrument needs to be available [22]. Assessing the validity of an instrument involves confirming the instrument's capability of measuring what it is intended to measure [23]. However, an extensive literature review has not revealed any validated instrument worldwide that measures the factors influencing antibiotics overuse in children with URTIs [24]. This study aims to validate a developed and content-validated instrument [19]; further validation includes construct validity of the instrument using factor analysis, which will determine the number and nature of the underlying construct in the developed instrument.


This was a cross-sectional study design using a preliminary-validated questionnaire [19]. The required ethical approvals were obtained from Queensland University of Technology (ethical approval number: 1200000022) and the Ministry of Education in the Eastern Province in Saudi Arabia (ethical approval number: 33505889). The questionnaire was distributed to parents of children (younger than 12 years old) in primary schools in the Eastern Province of Saudi Arabia between March to April 2012. Participants' consent was implied by the return of the completed questionnaire.

Only questionnaires completed by one of the parents or a legal guardian were included in the study. One questionnaire was excluded because it was completed by a sibling who was less than 18 years old.

Instrument development

The PAPA scale was developed to assess parental perceptions regarding antibiotics. This scale aims to assess the factors influencing parents to use antibiotics for their children, especially in relation to upper respiratory tract infections. A content evaluation panel was developed to assess the content and face validity of the instrument by building a group brainstorming process [25]. The scale items were firstly derived from relevant literature in the field. This was followed by a three-round Delphi process conducted using a panel of experts knowledgeable in such areas as pediatrics, infectious diseases, epidemiology, family medicine, psychology and counseling, and social sciences. The report of this study has been published elsewhere [19].

Experts were provided with a pool of 80 questions retrieved from the relevant literature [18,26-29]. They were asked to choose the most relevant questions to measure the study objectives; i.e. factors influencing the overuse of antibiotics in children with URTIs in Saudi Arabia for the first round. Experts were also invited to generate ideas in this round [30]. The included questions from the first round were then sent again to the same panel members with the percentage of agreement for each item [31]. In this second round, experts were asked to agree, disagree, and/or comment on the items. The third and last round was sent to the experts to obtain their final confirmation on the instrument. The development process involved face validity as well as content validation. Face validity was conducted by asking the experts to comment on the clarity and flow of the questions in the proposed questionnaire.

A 58-question content-validated survey was developed to conduct this study [19]. The first part of the questionnaire, which is not the focus of this study, dealt with parental demographics and children's health-related history.

Table 2 Children's health-related history according to their parents

Common cold episodes/year Antibiotic usage/year

Never Once 2 - 3 times 4-6 times > 6 times

Never 7 0 0 0 0

Once 7 23 12 2 0

2-3 times 13 24 65 9 1

4-6 times 2 6 12 33 4

> 6 times 0 0 3 2 10

Total = 235 (3 missing values).

The second part consisted of questions about the factors associated with antibiotics use, e.g. parental knowledge, behaviours, attitudes and beliefs about antibiotics use for children younger than 12 years of age. The last part was to assess the face validity of the questionnaire. All questions relating to antibiotics use were measured on a five-point Likert scale. Questions to assess the face validity of the questionnaire were on Binary scale (yes/no).

Statistical analysis

Personal characteristics were summarised using frequencies and percentages. The association of antibiotics use per year with the frequency of common cold episodes per year was assessed using cross tabulation.

Parallel analysis based on Principal Components Analysis was conducted; scree plots and Kaiser Criteria (Eigen value > 1) were used along a theoretical basis for choosing the number of factors. As this is a multivariate analysis, missing values were excluded listwise from the list.

Following the parallel analysis, Principal axis factoring was used to determine the nature of the underlying factors [25]. Both an orthogonal (Varimax) and an oblique

o ° Eigenvalues

\ Mean Eigenvalues

A Centites of the Eigenvalues

"»Oo, -


0 10 20 30 40


Figure 1 Parallel Analysis derived from a principal component analysis.

Table 3 The pattern coefficients from a principal axis factoring using promax rotation

Factors and items Items loadings Factor 1: Knowledge and beliefs

1- Antibiotics are needed for: the common cold .627

2- Antibiotics are needed for: sore throat .631

3- Antibiotics treat viralinfections .461

4- Antibiotics can cure ALL types of infections (viral, bacterial, & fungal) .574

5- When I visit the doctor for my child's common cold I expect a prescription for medication including antibiotics .594

6- Antibiotics are helpfulin treating common colds among children .687

7- Children with common colds get better faster when antibiotics are given .749

8- In the past, antibiotics have cured my child's cold symptoms .628

9- My child willbe sick for a longer time if he/she doesn't receive an antibiotic for cough, cold, or flu symptoms. .613

10- If my child has a cold or cough it is best to get an antibiotic to get rid of it .672 Factor 2: Behaviours:

11- Antibiotics should be sold without a prescription 443

12- In the past, I have stopped giving my child an antibiotic because my friends/family advised me to .426

13- I get my child's antibiotics from the pharmacy without a prescription .809

14- I generally store antibiotics at home for when they are needed .534

15- In the past, I have given my child an antibiotic without a prescription when he/she had a high temperature for a few days .874

16- In the past, I have changed doctors when my doctor did not prescribe antibiotics for my child .623 Factor 3: Sources of information:

17- I get my health-related information from the pharmacist .479

18- I get my health-related information from nurses and/or other allied health professionals .472

19- I get my health-related information from books and/or scientific literature .759

20- I get my health-related information from family and/or friends .621

21- I get my health-related information from the internet .773

22- I get my health-related information from the media: TV, radio, newspapers .789

23- I get my health-related information from my previous experience .556 Factor 4: Adherence:

24- It is not important to follow antibiotics doses strictly .465

25- Skipping one or two antibiotic doses doesn't make much difference .716

26- If my child gets better I can reduce the dose of antibiotics .902

27- If my child's condition is mild I would give the antibiotic according what I see is suitable for his/her condition .517

28- In the past, I have stopped giving my child an antibiotic because he/she felt better .697 Factor 5: Awareness about antibiotics resistance

29- Antibiotics treat bacterialinfections .446

30- Antibiotics are generally safe -.422

31- Antibiotics can be harmfulto one's health .444

32- Some germs are becoming harder to treat with antibiotics .446

33- Some germs can become resistant to antibiotics if they are taken in inadequate doses .674 Factor 6: Parent's perception on doctors' prescribing behaviors

34- I think doctors prescribe too many antibiotics .441

35- Doctors don't inform parents wellabout their child's condition .622

36- Doctors aren't wellinformed about judicious antibiotics use .674

Table 3 The pattern coefficients from a principal axis factoring using promax rotation (Continued)

Items excluded due to only trivial loadings on all factors (coefficient < 0.4):

37- Antibiotics are needed for: ear infection

38- If my child is asleep I willnot wake him/her up for the dose of antibiotic

39- In the past, I have stopped giving my child an antibiotic because he/she had side effects

40- In the past, I have taken my child to a doctor when he/she had a high temperature for a few days

41- I get my child's antibiotics from the pharmacy with a prescription

42- In the past, I have asked the doctor to prescribe medication for my child's common cold

43- I get my health-related information from my doctor

44- When I visit the doctor for my child's common cold and do not get antibiotics, I get dissatisfied

45- Frequency of antibiotic use does not influence its effectiveness The likely construct associated with each factor is also included.

(Promax) rotation were performed on the factor solution to determine which type of rotation was most suitable. The internal consistency of the instrument (i.e. reliability) was measured using Cronbach's alpha.

All data analysis was conducted using the Statistics Package for Social Sciences (SPSS v19) with the exception of the parallel analysis, which used the nFactor library (v2.3.3) within the R statistics package (v2.14.2).


The questionnaires were completed by 238 parents (25% response rate). Mothers were more responsive than fathers; 70 percent of the parents in the study are mothers. Parents' personal characteristics are summarised in Table 1. Some demographic differences were noticeable between mothers and fathers in the sample. With regard to age, the average age category of mothers in the study appears to be 31-40 years old (52%), while fathers tend to fall within the age category of 41-50 years old (44%). Most mothers and fathers are employed (56% and 79% consecutively), and third of mothers are housewives (34%). Moreover, illiteracy is more observable in mothers (2%), while all fathers in the study are literate. The majority of mothers and fathers have a diploma or a bachelor degree (76% and 55% consecutively). However, only 2 percent of mothers have higher degrees, compared to 26 percent of fathers.

Parents were asked to assess their child's health-related history in relation to the number of common cold episodes per year and the number of antibiotic use per year (see Table 2). According to the parents, 13 (5.5%) children in the study had a serious infectious disease in the past including chicken pox and unidentified respiratory infections. Thirty-two (13.4%) children had chronic diseases such as heart disease, diabetes, asthma, and allergies.

Parallel analysis was performed to decide on the number of factors to retain in the Parental Perception on Antibiotics Scale (PAPA Scale). Based on a 10,000-

permutations parallel analysis, a six-factor solution was produced (Figure 1).

According to the parallel analysis, a six-factor solution was used. The coefficients in the pattern matrix in Table 3 show the number and nature of factors in the PAPA Scale using Exploratory factor analysis. The produced factors include: Factor 1: knowledge and beliefs (10 items), Factor 2: behaviours (6 items), Factor 3: sources of information (7 items), Factor 4: adherence (5 items), Factor 5: awareness about antibiotics resistance (5 items), and Factor 6: parents' perception on doctors' prescribing behaviours (3 items). In addition, the inter-factor correlation matrix shown in Table 4 suggests that at least some of the factors are moderately correlated indicating that an oblique measurement model is justified.

By assessing the Instrument's reliability it was found that the total and sub-scales were demonstrated as being reliable with the overall Cronbach's alpha = 0.87, and the individual subscales Cronbach's alphas ranging from 0.771 to 0.794.


After conducting parallel analysis and factor analysis to the newly developed and content validated measurement instrument, the following factors emerged from the analysis: knowledge and beliefs, behaviours, sources

Table 4 Inter-factor correlation matrix

Factor 1 2 3 4 5 6

1 1.000 .038 -.058 .171 .010 -.078

2 .038 1.000 .113 .535 -.403 -.098

3 -.058 .113 1.000 .127 8 .192

4 .171 .535 .127 1.000 -.473 .104

5 .010 -.403 8 -.473 1.000 -.017

6 -.078 -.098 .192 .104 -.017 1.000

Extraction method: principal axis factoring.

Rotation method: promax rotation with Kaiser normalization.

Figure 2 The frequency distribution of the dimensions mentioned in the literature.

of information, adherence, awareness about antibiotics resistance, and parents' perception on doctors' prescribing behaviours.

The influencing factors on the overuse of antibiotics include psychosocial factors such as attitudes and beliefs; knowledge-related factors that may lead to unwanted behaviours such as parents' pressure and inappropriate use of antibiotics; and demographic factors including education levels, socioeconomic status, and employment.

The constructs measured in the literature in the field of antibiotics use include: attitudes, beliefs, knowledge (including experience with antibiotics), and behaviours (over-the-counter medication and self-medication) [5,13,16,17,20,32-35]. Other factors are measured within these major dimensions including: patient expectations and adherence to antibiotics, patients' perceptions regarding patient-doctor interaction, and patient satisfaction [15,18,36,37]. Demographic characteristics were also measured in the reviewed literature relating to antibiotics use including: age, gender, level of education, and socio-economic status. Figure 2 shows the

frequency of the dimensions reviewed in other studies that were conducted to measure the use of antibiotics. Thus, according to the dimensions available in previous studies and the dimensions present from this study, a conceptual model was created to show the relationship between the factors underlying antibiotics use/overuse (Figure 3).

Further psychometric testing is needed to determine the construct, concurrent, discriminate, and predictive validity of the PAPA scale. Moreover, the developed instrument can now be used in future research by translating it and culturally adapting it to different communities. In psychosocial research, instruments are frequently translated and cultural adapted to fit the population at hand [38]. Most instruments are developed in English. Therefore, for non-English speaking populations that are significantly different from the population used to develop the instrument, researchers usually translate and culturally adapt the English instrument to fit the local population [38]. Translation usually is a more efficient key for the scarcity of available instruments.

The PAPA scale produces a valid and reliable measurement instrument that can be used to assess parental perceptions regarding antibiotics. Since antibiotics overuse [3,4] and antibiotics resistance are global public health issues [8,9], many studies are targeted to minimise this problem. The PAPA scale could be effective in cross-sectional studies that aim to reduce the overuse of antibiotics in a community, starting by understanding the reasons behind this overuse. This, in turn, could inform the development of interventions directed to minimise the overuse of antibiotics.


The survey was distributed within primary schools in order to capture a more generalised cross-section of the

Figure 3 Conceptual framework.

community. However, since kindergartens are scarce in Saudi Arabia and not mandatory like primary, secondary, and high schools, parents of children under the age of six are not represented in such a sample unless there is more than one child in the household. Consequently, this could be considered a source of bias [39]. Also, another limitation is the low response rate which may raise concerns about selection bias.


This is the first paper to validate an instrument that measures the overuse of antibiotics at the patients/parents level. The study shows promising results, producing evidence of strong collection of conceptually homogenous items and clear alignment of the 'factors' with constructs identified in early phase. This instrument now needs further validation such as: confirming the construct validity using confirmatory factor analysis, and criterion-related validity.

Competing interest

There is no competing interest related to this study. Funding was received from University of Dammam, Saudi Arabia.

Authors' contributions

AA carried out the main intellectualcontribution to the conception and design of the study, data collection, and made substantialcontribution ir the analysis and interpretation of the data. XH participated in the design of the study, and has been involved in revising the manuscript critically for important intellectualcontent. CH participated in the design of the study, made substantialcontribution in the analysis and interpretation of the data, was involved in the revising the manuscript critically for important intellectualcontent, and has given the finalapprovalof the version to be published. All authors read and approved the final manuscript.

Author details

1Schoolof Public Health & SocialWork, Queensland University of Technology, Victoria Park Rd, Kelvin Grove, Brisbane, QLD 4059, Australia. 2lnstitute of Health and Biomedicallnnovation, Queensland University of Technology, Brisbane, Australia. 3Health Information Management and Technology Department, College of Applied MedicalSciences, University of Dammam, Dammam, Saudi Arabia.

Received: 7 September 2012 Accepted: 5 March 2013 Published: 11 March 2013


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Cite this article as: Alumran et al.: Assessing the overuse of antibiotics in children in Saudi Arabia: validation of the parental perception on antibiotics scale (PAPA scale). Health and Quality of Life Outcomes 2013 11:39.

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