• 검색 결과가 없습니다.

본 연구에서는 2012년 4월부터 2013년 1월 15일까지 아주대학교 의료원을 내원한 환자처방 중 DDIs의 예외사유 코드번호로 입력된 총 7,772건과, 외래, 입원, 응급 등 총 환자들 중 예외사유내용에 입력된 총 89,686건을 대상으로 분석하였다. 예외사유내용 중 외래환자 건수는 총 20,183건, 입원환자는 41,861건, 응급 등 기타는 27,642건이었다. 본 연구에서 예외사유코드의 분석 에 사용된 7,772건은 모두 외래환자로 제한하였다.

또한, 외래환자들 중 중복 예외사유 내용으로 입력한 20,183건을 입력된 내용 과 빈도에 근거하여 13개 그룹으로 분류를 한 후 ATC코드와 ICD코드, 연령 등 을 포함하여 빈도분석과 교차분석을 실시하였다. 또한, 처방의사가 건강보험심 사평가원이 제공하는 중복예외처방사유코드를 사용한 경우와 코드를 사용하지 않고 직접 Free text 형식으로 입력한 모든 건 수 을 3명의 독립적인 연구자가 직접 수작업(manual work)으로 평가하여 새로 분류하고 기존의 코드와 비교 분 석하였다.

분석결과 다음과 같은 주요 결과를 도출하였다.

첫째, 외래, 입원, 응급 전체에 대한 예외사유 내용을 분석한 결과, 외래, 입 원, 응급 등에서 총 89,686건이 시스템 내에 선택항목이 존재하지 않아서, 즉 코드에 입력하지 못하여 자유로운 문장(Free-text)으로 DDIs의 이유를 서술한 것으로 나타났다. 중복예외사유 내용을 분석한 결과, 가장 높은 비율을 차지한 것은 같은 시간대 섭취가 아닌 경우가 31.6% (28,306회)로 나타났으며, 이어서 질병이나 증상을 표기한 것(19,909회)이 22.2%를 차지하는 것으로 나타났고, 염증항목은 열, 부종, 통증, 감염 등의 항목을 포함한 것으로서 총 13.1%

(17,020회)를 차지하는 것으로 나타났다. 전혀 의미가 없는 ‘ㅋㅋㅋ’와 같은 형식으로 표기된 것도 12.0% (10,741회)나 되었으며, 단어나 문장을 서술하였 으나 어떤 의미인지 확인하기가 어려운 불분명한 표기도 0.6%(575회)를 차지하

고 있는 것으로 분석되었다.

그리고 염증과 관련된 경우가 16.0%를 구성하였다. 나머지 항목들은 모두 10%

외사유코드를 적용할 필요가 있음을 확인하였다. 아울러 후향적 DURs의 보다 확장된 결과를 얻을 수 있고 효과적이고 편의적인 DDIs시스템의 구축에 토대가 되고자 한다.

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부 록 부록 1. ATC

Class of drug 1 Class of drug 2 N %

Antithrombotic agents Antithrombotic agents 568 7.308

Antiepileptics Antiepileptics 549 7.064

Antidepressants Antidepressants 408 5.250

Drugs for peptic ulcer and

gastro-oesophageal reflux disease (gord)

Drugs for peptic ulcer and

Blood glucose lowering drugs,

excl. insulins 380 4.889

Lipid modifying agents, plain Lipid modifying agents, plain 367 4.722

Anxiolytics Anxiolytics 354 4.555

Angiotensin ii antagonists, plain Angiotensin ii antagonists, plain 350 4.503 Thyroid preparations Thyroid preparations 277 3.564 Selective calcium channel blockers with

mainly vascular effects

Selective calcium channel blockers with mainly vascular effects

234 3.011

Opioids Opioids 212 2.728

Beta blocking agents Beta blocking agents 211 2.715 Antihistamines for systemic use Antihistamines for systemic use 198 2.548 Other drugs for acid related disorders Other drugs for acid related

disorders 165 2.123

Antiinflammatory and antirheumatic products, non-steroids

Hypnotics and sedatives Hypnotics and sedatives 124 1.595

Calcium Calcium 122 1.570

Antimalarials Antimalarials 111 1.428

Vasodilators used in cardiac diseases Vasodilators used in cardiac

diseases 95 1.222

Intestinal antiinflammatory agents Intestinal antiinflammatory

agents 94 1.209

Anti-dementia drugs Anti-dementia drugs 88 1.132

Drugs used in benign prostatic hypertrophy

Drugs used in benign prostatic

hypertrophy 82 1.055

Dopaminergic agents Dopaminergic agents 78 1.004

Peripheral vasodilators Peripheral vasodilators 67 0.862 Drugs for functional gastrointestinal

disorders

Drugs for functional

gastrointestinal disorders 65 0.836 Other systemic drugs for obstructive

airway diseases

Other systemic drugs for

obstructive airway diseases 65 0.836 Vitamin b12 and folic acid Vitamin b12 and folic acid 64 0.823 Supplement 1. Frequency of ATC Codes in 7,772 Outpatient Cases with Therapeutic Duplication

Class of drug 1 Class of drug 2 N % Other alimentary tract and metabolism

products

Other alimentary tract and

metabolism products 60 0.772 Other dermatological preparations Other dermatological

preparations 60 0.772

Antacids Antacids 59 0.759

Selective calcium channel blockers with direct cardiac effects

Selective calcium channel blockers with direct cardiac effects

59 0.759 Corticosteroids, plain Corticosteroids, plain 57 0.733 Muscle relaxants, centrally acting agents Muscle relaxants, centrally

acting agents 53 0.682

Low-ceiling diuretics, thiazides Low-ceiling diuretics, thiazides 51 0.656 Ace inhibitors, plain Ace inhibitors, plain 50 0.643

Propulsives Propulsives 47 0.605

Immunosuppressants Immunosuppressants 46 0.592

Expectorants, excl. combinations with cough suppressants

Expectorants, excl. combinations

with cough suppressants 43 0.553 High-ceiling diuretics High-ceiling diuretics 42 0.540 Other analgesics and antipyretics Other analgesics and antipyretics 40 0.515

Parasympathomimetics Parasympathomimetics 40 0.515

Hormone antagonists and related agents Hormone antagonists and related

agents 39 0.502

Other antineoplastic agents Other antineoplastic agents 39 0.502 Antidiarrheal microorganisms Antidiarrheal microorganisms 36 0.463

Immunosuppressants 36 0.463

Anesthetics, general Anesthetics, general 35 0.450

Iron preparations Iron preparations 35 0.450

Vitamin b-complex, incl. combinations Vitamin b-complex, incl.

combinations 33 0.425

Vitamin a and d, incl. combinations of the two

Vitamin a and d, incl.

combinations of the two 32 0.412 Antigout preparations Antigout preparations 31 0.399 Antithyroid preparations Antithyroid preparations 29 0.373 Psychostimulants, agents used for adhd

and nootropics

Psychostimulants, agents used

for adhd and nootropics 29 0.373 Anticholinergic agents Anticholinergic agents 27 0.347

Urologicals Urologicals 26 0.335

Other cardiac preparations Other cardiac preparations 24 0.309

Bile therapy Bile therapy 23 0.296

All other therapeutic products All other therapeutic products 22 0.283 Other drugs for disorders of the

musculo-skeletal system

Other drugs for disorders of the

musculo-skeletal system 21 0.270 Capillary stabilizing agents Capillary stabilizing agents 20 0.257 Antiemetics and antinauseants Antiemetics and antinauseants 19 0.244 Specific antirheumatic agents Specific antirheumatic agents 19 0.244 Stomatological preparations Stomatological preparations 18 0.232 Other beta-lactam antibacterials Other beta-lactam antibacterials 17 0.219 Adrenergics, inhalants Adrenergics, inhalants 15 0.193 Direct acting antivirals Direct acting antivirals 15 0.193

Class of drug 1 Class of drug 2 N % Drugs for treatment of tuberculosis Drugs for treatment of

tuberculosis 15 0.193

Lipid modifying agents, combinations Lipid modifying agents,

combinations 15 0.193

Cough suppressants, excl. combinations with expectorants

Cough suppressants, excl.

combinations with expectorants 14 0.180 Drugs for constipation Drugs for constipation 14 0.180

Estrogens Estrogens 14 0.180

Liver therapy, lipotropics Liver therapy, lipotropics 14 0.180 Multivitamins, combinations Multivitamins, combinations 14 0.180 Antiinflammatory/antirheumatic agents in

combination

Antiinflammatory/antirheumatic

agents in combination 13 0.167 Antimetabolites

Antiinflammatory and antirheumatic products, non-steroids

12 0.154 Digestives, incl. enzymes Digestives, incl. enzymes 12 0.154 Low-ceiling diuretics, excl. thiazides Low-ceiling diuretics, excl.

thiazides 12 0.154

Other mineral supplements Other mineral supplements 12 0.154 Vitamin b1, plain and in combination with

Cardiac glycosides Cardiac glycosides 11 0.142

Other vitamin products, combinations Other vitamin products,

combinations 11 0.142

Quinolone antibacterials Quinolone antibacterials 11 0.142

Antimetabolites Antithrombotic agents 10 0.129

Irrigating solutions Irrigating solutions 10 0.129 Belladonna and derivatives, plain Belladonna and derivatives, plain 9 0.116 Cough suppressants and expectorants,

combinations

Cough suppressants and

expectorants, combinations 9 0.116 Nasal decongestants for systemic use Nasal decongestants for

systemic use 9 0.116

Other plain vitamin preparations Other plain vitamin preparations 9 0.116 Potassium-sparing agents Potassium-sparing agents 9 0.116 Antiarrhythmics, class i and iii Antiarrhythmics, class i and iii 8 0.103 Corticosteroids for systemic use, plain Corticosteroids for systemic use,

plain 8 0.103

Posterior pituitary lobe hormones Posterior pituitary lobe

hormones 8 0.103

Other sex hormones and modulators of the genital system

Other sex hormones and

modulators of the genital system 7 0.090 Antiadrenergic agents, peripherally acting Antiadrenergic agents,

peripherally acting 6 0.077 Decongestants and other nasal

preparations for topical use

Decongestants and other nasal

preparations for topical use 6 0.077 Antiglaucoma preparations and miotics Antiglaucoma preparations and

miotics 5 0.064

Antivertigo preparations Antivertigo preparations 5 0.064 Beta-lactam antibacterials, penicillins Beta-lactam antibacterials,

penicillins 5 0.064

Class of drug 1 Class of drug 2 N % Drugs affecting bone structure and

mineralization

Drugs affecting bone structure

and mineralization 5 0.064 Macrolides, lincosamides and

streptogramins

Macrolides, lincosamides and

streptogramins 5 0.064

Anti-acne preparations for topical use Anti-acne preparations for

topical use 4 0.051

Antivaricose therapy Antivaricose therapy 4 0.051

Arteriolar smooth muscle, agents acting on Arteriolar smooth muscle, agents

acting on 4 0.051

Cardiac stimulants excl. cardiac glycosides Cardiac stimulants excl. cardiac

glycosides 4 0.051

Other gynecologicals Other gynecologicals 4 0.051

Antiinflammatory and antirheumatic

products, non-steroids Antithrombotic agents 3 0.039 Antiobesity preparations, excl. diet

products

Antiobesity preparations, excl.

diet products 3 0.039

Potassium Potassium 3 0.039

Androgens Androgens 2 0.026

Antiinflammatory and antirheumatic

products, non-steroids Other antineoplastic agents 2 0.026

Antimetabolites Antimetabolites 2 0.026

Anxiolytics Antimycotics for systemic use 2 0.026 Drugs for functional gastrointestinal

disorders

Drugs for functional

gastrointestinal disorders 2 0.026 Drugs for peptic ulcer and

gastro-oesophageal reflux disease (gord) Direct acting antivirals 2 0.026 Hormonal contraceptives for systemic use Hormonal contraceptives for

systemic use 2 0.026

Ocular vascular disorder agents Ocular vascular disorder agents 2 0.026 Other antineoplastic agents

Antiinflammatory and antirheumatic products, non-steroids

2 0.026 Other dermatological preparations Potassium-sparing agents 2 0.026 Other hematological agents Other hematological agents 2 0.026

Progestogens Progestogens 2 0.026

Urologicals Vasodilators used in cardiac

diseases 2 0.026

Adrenergics for systemic use Adrenergics for systemic use 1 0.013 Antidepressants Decongestants and other nasal

preparations for topical use 1 0.013

Antifibrinolytics Antifibrinolytics 1 0.013

Antimigraine preparations Antimigraine preparations 1 0.013 Antimycotics for systemic use Hypnotics and sedatives 1 0.013 Antimycotics for systemic use Lipid modifying agents, plain 1 0.013 Antispasmodics and anticholinergics in

combination with other drugs

Antispasmodics and

anticholinergics in combination with other drugs

1 0.013

Bacterial vaccines Bacterial vaccines 1 0.013

Other antidiarrheals Other antidiarrheals 1 0.013

Other dermatological preparations 1 0.013

Other nervous system drugs Other nervous system drugs 1 0.013

Class of drug 1 Class of drug 2 N % Other ophthalmologicals Other ophthalmologicals 1 0.013

Potassium-sparing agents Potassium 1 0.013

Progestogens and estrogens in combination

Progestogens and estrogens in

combination 1 0.013

Propulsives Blood glucose lowering drugs,

excl. insulins 1 0.013

Sulfonamides and trimethoprim Sulfonamides and trimethoprim 1 0.013

부록 2. ICD

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

ICD 질병명 N %

-Abstract-Analyzing alert overrides reasons in the Drug Utilization Review system

CHUL JANG

Department of Biomedical Informatics The Graduate School of Medicine, Ajou University

(Supervised by professor Rae Woong Park)

All medical institutions in the country use a single Drug Utilization Review (DUR) System. Efficient DUR system operation requires continuous monitoring for alerts, especially ignored alerts. This study identified the overrides for overlapping prescription alerts by investigating the alert override reason codes and the reasons given. We used cases where prescriptions were written despite the overlapping prescription alerts occurring in the DUR system of a single tertiary teaching hospital. Through this, we explored possibilities to improve the existing alert override reason codes.

We conducted a descriptive analysis on all overlapping prescription alerts

in drug prescriptions written for patients admitted to a Gyeonggi-do

university hospital from April 2012 to January 15, 2013. Cases for which

alert override reason codes were entered during the corresponding period

were 7,772 outpatient prescriptions. The total alert override cases for

which free description rather than alert override reason codes were

entered were 89,686 in outpatient, emergency, and other departments.

Investigators classified these alert override reasons into 13 category groups selected by agreement. Three investigators manually classified the alert override reasons for these 89,686 cases.

Classifying these 13 category groups and comparing them to the existing 11 alert override reason codes of the Health Insurance Review and Assessment Service provided the following major results. First, after analyzing the alert override reasons for outpatients, hospitalized patients, and emergency patients, the most frequent cases were those when prescription drugs were not to be administered at the same time, which accounted for 31.6% (28,306 cases) this was followed by 22.2% (19,909 cases) in which the disease name or symptoms were described. Second, when the diagnosis frequency(by the international standard ICD-10 codes) at prescription time was analyzed in the cases for which alert override reasons were entered, the diagnostic code with the highest percentage was M (musculoskeletal system) with 23.6% (21,183 cases), followed by J (respiratory system) with 11.5%, and K (digestive system) with 10.1%.

Third, the frequency of drugs that became problems at prescription time

was analyzed using the international drug classification codes(Anatomical

Therapeutic Chemical Classification or ATC codes). For cases in which alert

override reasons were entered, the ATC code with the highest percentage

was M (musculoskeletal system) with 56.8% (50,950 cases), which was

more than half of the total cases. This was followed by C (cardiovascular

system) with 10.8% (9,651 cases), L (anticancer drugs and immune

regulators) with 9.5% (8,523 cases), and N (nervous system) with 7.1%

(6,330 cases).

In this study, we explored possibilities of conversion to the existing 11 codes by analyzing all alert override reasons entered as free description among alert override reasons for all outpatients, hospitalized patients, and emergency patients. We thus proposed six new classification codes for user entry to ease code selection without entering free description.

However, this study has the following limitations. Since we used the prescription data for about 10 months at a single tertiary teaching hospital, there is the possibility of selection bias dependent on region, time, and disease severity. In addition, in the process of mapping alert override reasons into 13 codes, arbitrarily selected by the investigators, there is a possibility of classification errors due to subjectivity. In spite of these limitations, the strengths of this study are that the vast amount of alert override reasons entered as free description were analyzed directly and integrated with the existing alert override codes.

Key words: Drug Utilization Review System, Drug-Drug Interaction, Alert

override codes

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