Pattern and determinants of antibiotic mal-prescribing among family physicians in the primary health care facilities in Iran

doi:10.21203/rs.2.18183/v1

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Pattern and determinants of antibiotic mal-prescribing among family physicians in the primary health care facilities in Iran

https://doi.org/10.21203/rs.2.18183/v1

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Background Mal-prescribing of antibiotics is a major and ongoing global public health problem both in developing and developed countries. Family physicians are the most important and dominant health services providers in Iran that pattern describing by them poorly understood. This study aimed to assess the pattern and factors affecting antibiotic prescribing by family physicians in primary health care (PHC).

Methods In this descriptive-analytical study, 1068 prescriptions of family physicians in PHC were assessed among Alborz province health facilities. Prescriptions were selected by random sampling. The mal-prescribing was assessed based on 4 criteria including dose per consumption, dose per day, correct duration of therapy and possible interaction with other antibiotics. Logistic regression was used to estimate the odds ratio and 95% confidence interval for the association between antibiotic prescribing and affecting factors.

Results The average number of antibiotics was reported 1.27 per prescription and almost 56.8% of them had at least an antibiotic. There was a statistically significant relationship between age, gender, type of insurance booklet, work experience of physicians, seasons of the year and receiving antibiotics (P<0.05). In 59.31% of antibiotic prescriptions at least one of the scientific criteria was not satisfied.

Conclusion The number of prescribed antibiotics and the mal-prescribing percentage were high among family physicians. Strong political commitment and altering physicians' training curricula especially promoting a preventive approach and developing a registration system for identifying adverse drug reactions, antibiotic use patterns and mal-prescribing are imperative at the grass-root level.

General Practice

Health Economics & Outcomes Research

Antibiotics prescription

Family physicians

Primary health care

Mal-prescribing

Iran

Irrational use and mal-prescribing of drugs are a major and ongoing global public health problem both in developing and developed countries that deserves more attention by health systems and policymakers (1, 2). Rational and appropriate usage of drugs were defined, the reasonable and proposed use of drugs at an advisable time so that they have had beneficial effects on patients in terms of the virtue of strength, dose and duration of therapy (3). Rational use of drugs depends on pursuing the process of prescription which includes identification of patients’ problem (diagnosis), effective and safe therapy (therapy with drugs or non-drugs options), selecting suitable drugs, dosage, and duration, writing a good prescription, providing enough information to the patient and planning to evaluate treatment responses (4).

Self-medication by patients, prompt and constant spread of antimicrobial-resistant organisms are the major threat to our ability to successfully treat growing many contagious diseases. In the lack of the development of new generations of antibiotic drugs, appropriate use of current antibiotics is required to guarantee the long-term availability of effective therapy for microbial infections (2, 5–7).

In Iran, Primary Health Care (PHC) is the first, nearest and comprehensive line of basic and essential health services in the Iranian health system provided by family physicians and many types of health workers in all cities and villages. In Iran, some evidence indicated that the inappropriate prescription of antibiotics and large self-medication is one of the main causes of antibiotics resistance and side reactions (8, 9). In Iran, antibiotics are used common drugs, and almost half of the patients during doctor-patient encounters received at least an antibiotic so that it is estimated that more than 8% of hospital admission in Iran occur due to adverse drug reactions (5, 10, 11). So, rational and appropriate drug prescribing especially antibiotics will decrease antibiotics resistance at the global level, adverse drug reactions, toxicity risks, healthcare expenditure and household costs, and duration of therapy (11, 12).

Among PHC family physicians, pattern and factors associated with mal-prescribing poorly understood and very limited studies have been performed especially after execution of rural insurance and family physician plan, the present study has been done by goal of determination of the prescribing pattern of antibiotics for outpatients in therapeutic and health centers and also determining the effective factors on this pattern.

Study design

In this descriptive-analytical study, 1068 prescriptions by 48 family physicians (267 prescriptions in each season) in PHC were selected among total 90115 prescriptions from 8 rural, 8 urban and 3 urban-rural health centers from September 2012 to September 2013 in Alborz province of Iran.

Prescriptions were selected by random sampling and considering proportional to the size of Iranian insurance booklet types. In the sampling process, the unreadable prescription was excluded and the next prescription was replaced. The sample size was estimated in 1068 by considering α = 0.05 and d = 0.03 and p = 0.5.

Data collection

Incorrect or mal-prescribing of antibiotics was assessed based on 4 scientific items including a) dose per consumption, b) dose per day, c) duration of therapy and d) possible interaction with other antibiotics or drugs. The incorrect prescription was defined if at least one of the items above is not satisfied. The prescribed assessment was performed by a high expert (more than 10 years’ experience) pharmacy based on Martindale: The Complete Drug Reference.

A checklist was used for data collection. Variables and information such as age, gender of physicians and patients, number and total price of drug items and prescribed antibiotic name and type, form and usage of drug, consumption way based on amount of use for each time, duration of treatment, times of use in each day, possible interaction with antibiotics or drugs, rate of combination therapy, type and kind of physicians’ graduation and also the statues of occupation and year of services from prescriptions and personnel files were collected.

Data analysis

SPSS software (version 18.0, Chicago, IL, USA) was used for data analysis. For checking data normality, the Kolmogorov-Smirnov test was used. Chi-square test was used for binary variables and independent t-test was used for normal quantities variables. Logistic regression was used to estimate the odds ratio and 95% confidence interval for the association between antibiotic prescribing and affecting factors. P-value <0.05 was considered significant in all of the tests.

Table 1 indicated that some socioeconomic status and factors affecting the relationship with odds of antibiotics prescribing by family physicians in primary health care, Alborz province, Iran. The results showed that a total of 1068 prescriptions which were studied, 607 prescription (56.8%) had at least one item of antibiotic and 461 prescription (43.2%) were without any antibiotic and also 3704 items of prescribed drugs in this prescription, 772 items (20.8%) are specified by antibiotics. It was to be found a significant difference between antibiotic prescribing and different seasons of the year. A total of 267 prescriptions in the summer season, 112 (41.9) of them had an antibiotic while, as the same number of this prescription in winter, 177 prescriptions (66.3%), patients had received antibiotics (p<0.05). Among all assessed prescriptions, 640 (59.9%) of them was related to female genders, while the proportion of received antibiotic was more in males than females (63.3% versus 52.5%). Moreover, according to the insurance booklet among 1068 assessed prescriptions, more than 50% of them prescribed with a social security booklet (table1). This study showed that there is a relation between physicians’ experience and the times of antibiotic prescription in such a way that by an increase in experience and year of service, antibiotic prescribing was decreased (p = 0.008).

The average age of study outpatients was 32.4±21.4 years. Patients who had received antibiotics (26.07±19.3) with those who didn’t receive antibiotics (40.7±21.2) there was a statistical significant difference (Fig1). Also, the mean age of outpatients receiving prescription was reported lowest and highest in winter and summer, respectively (Fig2).

The average drug items and price per prescription were 3.47±1.3 and 9034 RIs, respectively and in prescription consisting antibiotic was 3.67±1.22, and Rls. 35065, respectively. It was to be found a significant association between both groups of prescription with and without antibiotic (Table 2).

Table 3 demonstrated that the distribution of prescribed antibiotics based on name, the form of drug and consumption way by family physicians, Amoxicillin capsule 500mli.g with 10.2%, pill with 24.7% and oral method of consumption with 70.59% were the most abundant.

Table 4 indicated that the percent and distribution of incorrect prescribing among all 1068 assessed prescription by family physicians. According to our results, incorrect prescribing in a dose per day criteria had the most frequency in total prescriptions both with and without antibiotics with 67.72%.

This study investigated the pattern of antibiotic prescription and it’s affecting factors and also the mal-prescribing situation in the Iranian PHC system by family physicians. Family physicians are the most important with high numbers and key health services providers in Iran’s PHC. The modification of the antibiotic prescribing pattern by this group of providers can play a major role in reducing the burden of microbial resistance and health expenditures in Iran and global health systems. On the other hand, previous studies had examined most the prescribing of antibiotics in general practitioners, specialists or dentists (13, 14). This study is one of the few studies focused on family physicians, at least in Iran.

The percent of prescriptions with an antibiotic in this study (56.8%) is similar to the result of Indian study with 55% (15) but this ratio in a study in Sabzevar, Iran was reported 45% (16).

It is a high percentage of antibiotic prescribing in our study and the reason can be the high rate of irrational prescribing by family physicians, beliefs and different social and cultural factors among different level of people, high rate of environmental polluting materials in accordance to the industrial zone and specially air pollution because of neighboring to the metropolitan and Iranian capital such as Karaj and Tehran and suspecting infectious disease such as sinusitis and pharyngitis. Moreover, it may occur due to easy access to medication and drugs and the low price of drugs in comparison to other countries.

However, the rate of antibiotic prescription in our study is less than a study conducted from Tehran metropolitan city and capital of Iran (62.39%) (17), which supports the effect of accessibility factor and the role of environmental polluting materials is causing more infections.

The average rate of prescribed drug items in this study was 3.47 per prescription, this finding is almost in agreement with Iranian protocol of family physicians prescriptions that is 3.5 items (18), however, this amount is more than from 12 developing countries which is between 2.2 to 3.8 and developed countries about 1.3 to 2.2, is recorded (19, 20), and it is mention that an undesirable statues of drug prescribing in this study.

Another related factor to the antibiotic prescribing in the present study was the impact of the seasons so that the number of antibiotic prescriptions increased as the cold season increased. This finding is in agreement with national studies (11, 21).

One of the most important criteria for evaluating the correct and rational prescribing of antibiotics is compliance with international valid guidelines and up-to-date medical science. Our findings showed that a large volume of antibiotics prescribed in our study area did not follow the correct scientific method. This defect may be a major determinant of the development of antibiotic resistance and maybe a threat to human life.

In this study, incorrect and unscientific antibiotic prescribing in prescriptions was assessed based on four criteria including antibiotic dosage per consumption, doses per day, duration of therapy and interaction effect with other antibiotics or drugs. Our findings showed that family physicians prescribed antibiotics in most prescriptions were unscientific or incorrect. This finding has been observed in other national studies and other countries (22–26). But this issue in our study was reported slightly high. Therefore, reducing the number of antibiotics in each prescription and inappropriate and unscientific prescribing of antibiotics is a major concern for drug resistance and it is a challenge for the country’s health system that deserves tangible attention in improving and modifying it.

In the present study injecting form of antibiotics was prescribed more than other forms with 22.27% although this amount was reported 49% in a study in Urmia city (27) that is higher than our study. But the injection form was reported less than our study in the Bhopal zone of India with 13.8% (28). Therefore, a high percentage of injectable antibiotics are prescribed by family physicians shows an irregular form of injecting antibiotics by them. It may have resulted from cultural-social factors and believing the high effect of injecting form of drugs by patients which besides being expensive in regard to oral form, sometimes is dangerous for patients (29), another reason maybe is the existence of injecting section in most of therapeutic and health centers and following the desire of patients to receive whole services from the place of their refer (11, 17). Amoxicillin and Penicillin were the most commonly prescribed drug in our study and a study of Dong and et al. in China (30).

The price of antibiotics in proportion to total price of drug prescriptions were 33.7% and to the prescriptions included antibiotics 56.4% which in comparison to the results of a study from Urmia city with 35% (27) and the finding from other countries such as France with 34.7% and USA with 33% was a high number (31, 32), so, this is a high rate of antibiotic prescribing and imposing more economic load on families and medicine system of country, based on studies, up to $3500 can be saved by limiting the Antibiotic prescribing (33), Anyway the average price of prescriptions in this study which was Rls. 59034 in comparison to the U.S, that was $75 in the year 2006, was a low number that shows the less price of the drug and unreal cost of it in-country (34).

Our findings indicated that the number of prescribed antibiotics and the incorrect prescription proportion are high among family physicians and need intervention. This study can provide useful information about the antibiotic prescribing pattern and mal-prescribing of drugs in Iranian PHC by family physicians. Our study results to assist program managers and policymakers to develop effective strategies to improve irrational antibiotic prescribing patterns and health expenditure in Iranian PHC and also worldwide health systems.

Developing a registration system for identifying adverse drug reactions, antibiotic use patterns, and inappropriate prescriptions, revising in treatment protocols and family physicians purchase services, development of targeted and effective training programs at different levels are suggested.

PHC: Primary Health Care

Acknowledgments

Hereby announce our thanks and appreciate from the cooperation of respectful Deputy of technology and researches and student’s researches committee of Medical Sciences University of Ilam for financial support of project and also Mr. Ali Khosravi, respectfully expert of insuring of Health Center of Savojbolagh city and other experts related that cooperated in collection and exploitation of data.

Authors’ contributions

HA, GK: Developed the original idea, protocol development and interpretation, data analysis, and data collection and drafted all sections of the manuscript. Data collection, Data extraction, contributed to the development of the protocol: AD, KK, BF, EA and EDE. All the authors approved the final manuscript.

Funding

This study was approved and funded by Ilam University of Medical Sciences and a grant to number 918087/96.

Ethics approval and consent to participate

This study was approved by the Student Research Committee and the ethic committee of Ilam University of Medical Sciences to number IR.MEDILAM.REC.1391/8087 and conducted from drug prescriptions by family physicians. Human samples have not been used for the study.

Consent for publication

The authors and funding organizations are Consent for publication.

Competing interests

The authors have no conflicts of interest to declare for this study.

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Table1. Some of socio-economic status and factors affecting antibiotic prescription by family physicians in primary health care, Alborz province, Iran

Variables		Prescription		OR (95% CI)	p-value
Variables		With antibiotic N (%)	Without antibiotic N (%)	OR (95% CI)	p-value
Age of patients	32.4±21.4	26.07±19.3	40.7±21.2	4.47 (2.58-8.89)	0.001
Gender of patients	Male	271(44.6%)	157(34.1%)	1.56 (1.22-2.01)	0.001
Gender of patients	Female	336(55.4%)	304(65.9%)	1.56 (1.22-2.01)	0.001
Gender of physicians	Male	174(28.7%)	127(27.5%)	1.06 (0.81-1.38)	0.688
Gender of physicians	Female	433(71.3%)	334(72.5%)	1.06 (0.81-1.38)	0.688
Seasons of year	Autumn	172(28.3%)	95(20.6%)	1.74 (1.07-4.88)	0.042
	Winter	177(29.2%)	90(19.5%)
	Spring	146(24.1%)	121(26.2%)
	Summer	112(18.5%)	155(33.6%)
Type of insurance booklet	Villagers and tribes	215(35.4%)	214(46.4%)	4.12 (1.67-14.39)	0.002
	insurance social security	334(55%)	202(43.8%)
	therapeutic services	46(7.6%)	37(7.4%)
	armed forces	12(2%)	11(2.4%)
employment statues of Physicians	Regular Hiring	44(7.2%)	39(8.5%)	1.02 (0.33-1.54)	0.898
	Contractual Hiring	20(3.3%)	15(3.3%)
	Family physician’s contract	410(67.5%)	310(67.2%)
	Plan bill	133(21.9%)	97(21%)
Experience of the physicians	<2years	317(60.96%)	203(39.03%)	1.38 (1.08-1.77)	0.008
Experience of the physicians	≥2 years	290(52.91%)	258(47.08%)	1.38 (1.08-1.77)	0.008
Graduation university	Governmental university	392(64.6%)	317(68.8%)	0.83 (0.64-1.07)	0.152
Graduation university	Private university	215(35.4%)	144(31.2%)	0.83 (0.64-1.07)	0.152
Type of university	Type Ι	256(65.3%)	205(64.7%)	0.78 (0.76-1.12)	0.188
	Type ΙI	118(30.1%)	105(33.1%)
	Type ΙII	18(4.6%)	7(2.2%)
Type of health center	Rural	243(40%)	201(43.6%)	0.86 (0.46-1.39)	0.259
	Urban	49(8.1%)	27(5.6%)
	Rural- Urban	315(51.9%)	233(50.5%)

Table 2. The average and difference mean of number and price of total drug items and antibiotic items among prescriptions with and without antibiotic

Variables	Prescription		Mean ± SD	p-value	Mean difference	95% Confidence Interval
	with antibiotic	without antibiotic				Lower Bound	Upper Bound
Total of drug items	2229	1475	3.47±1.3	0.000	0.47	0.31	0.62
Total of antibiotic items	772	0	1.27±76	0.000	1.27	1.23	1.31
Price of all per prescribing	37,719,350	25,329,210	59034.23±9161.65	0.018	7196.55	1260	13132
Price of antibiotics per prescribing	21,284,955	0	35065.19±4172.86	0.000	35065.8	32924	37207

*Rls

Table3. Frequency of prescribed antibiotics based on name, the form of drug and consumption method by family physicians

Rank	Name	Percentage	Form of Drug	Percentage	Method	Percentage
I	Amoxicillin 500 mil.g (cap)	10.23%	Tablet	24.7%	Oral	70.59%
II	Penicillin 1,200,000 u.v (vial)	9.06%	Capsule	23.05%	Injection	22.27%
III	Azithromycin 250 mil.g (cap)	8.03%	Suspension	22.7%	Local	7.12%
IV	Penicillin 6.3.3 u.v (vial)	6.9%	Vail	21.3%
V	Cefixime 100(susp)	5.8%	Ointment	4.2%
VI	Cefixime 400 mil.g (tab)	5.6%	Drop	2.7%
VII	Co-amoxyclave 312 (susp)	5.5%	Ampoule	0.9%
VIII	Other antibiotics	48.88%

Table4. Distribution of incorrect types of prescribed antibiotics by family physicians in primary health care

Type of incorrect prescribing	With Antibiotic	Without Antibiotic	Total incorrect
Dose per consumption	10.23%	12.52%	21.9%
Doses per day	34.06%	38.71%	67.72%
Duration of treatment	15.02%	17.13%	29.97%
Interaction with other antibiotics	-	23.22%	40.63%
Total	59.31%	91.58%	-

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Pattern and determinants of antibiotic mal-prescribing among family physicians in the primary health care facilities in Iran

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Version 1

Abstract

Figures

Introduction

Methods

Study design

Data collection

Data analysis

Results

Discussion

Conclusion

Abbreviations

Declarations

Acknowledgments

Authors’ contributions

Funding

Ethics approval and consent to participate

Consent for publication

Competing interests

References

Tables

Status:

Version 1