Comparison of primary care prescriptions for old and very old hypertensive patients

BACKGROUND

Elderly and very elderly individuals might be subject to different approaches for the treatment of hypertension. We aimed to compare drug utilization in hypertensive old patients and very old patients in primary care, along with the evaluation of potentially inappropriate drug prescribing.

METHODS

In this cross-sectional study, we compared prescriptions of 65-79-year-old (old patient prescriptions [OPP], n = 433,988) vs. ≥80-year-old (very old patient prescriptions [VOPP], n = 134,079) with "essential hypertension" diagnosis, issued by 3:1 systematically-sampled primary care physicians (n = 1431) in İstanbul throughout 2016. Drug utilization patterns and distribution of antihypertensives based on drug class and combination status were evaluated. Frequency of potentially inappropriate drugs per Beers Criteria were identified and compared.

RESULTS

Antihypertensive monotherapy practice was less common in OPP than VOPP (43.3% vs. 45.3%; p < 0.001). In both groups,the most commonly prescribed drugs were beta-blockers for monotherapy (37.4% vs. 33.1%, p < 0.001) and thiazide diuretics for combined therapy (69.8% vs. 67.4%, p < 0.001). Metoprolol was the most commonly prescribed antihypertensive both in OPP and VOPP (15.3% vs. 14.8%). Furosemide was ranked 10th in OPP and 3rd in VOPP (2.7% vs. 5.5%). Cardiovascular system drugs were the most commonly encountered potentially inappropriate medications in both groups (263.9 vs. 283.4 per 10,000 prescriptions, p = 0.004). Regarding antihypertensive drugs, 2.2% of those in OPP and 2.4% of those in VOPP were identified as potentially inappropriate (p = 0.002).

DISCUSSION

Prescribing preferences to old and very old patients mostly showed slight differences. Almost half of prescriptions comprising antihypertensive monotherapy might imply hesitancy to prescribe combinations. Overuse of risky drugs such as furosemide in both groups, especially in the very elderly, requires more attention.

Utilization of Injectable Drugs for Communicable and Non-communicable Diseases in Primary Healthcare: A Retrospective Study in Turkey

Objective: Primary care, which is often the first level of contact for patients with various communicable diseases (CDs) and noncommunicable diseases (NCDs), might exhibit patterns of injectable drug utilization different from hospitals. We aimed to examine injection prescribing to adults with CD or NCD in primary care. Methods: In this retrospective study, single-diagnosis injectable drug-containing prescription data from Family Medicine Information System comprising 32 provinces of Turkey were analysed. The prescriptions were grouped by diagnosis as “CD” (n=3848) and “NCD” (n=9338). Injectable drug utilization patterns in these groups were analysed by demographics, diagnoses, and drug subgroups. Results: Out of 13186 prescriptions, 70.8% were issued for NCDs. NCD prescriptions were mostly generated for women and elderly (p<0.05 for both). About 63.3% (n=2948) of injectable drugs in CD prescriptions were antibiotics and 12.6% were analgesics. Cefazolin (15.2%) was the most commonly prescribed antibiotic for acute pharyngitis and acute sinusitis, and benzathine benzylpenicillin (12.8%) was the top-choice for acute tonsillitis and rheumatic fever. In NCD prescriptions, 34.0% (n=4214) of injectable agents were analgesics and 16.9% were muscle relaxants. The most frequently encountered drug in NCD prescriptions was thiocolchicoside (16.3%), which was the top-choice in all seven common musculoskeletal diagnoses. Conclusion: Muscle relaxants and analgesics were the most commonly prescribed injectable drugs for NCDs, musculoskeletal diseases in particular. Antibiotics were frequently encountered in CD prescriptions, mostly as broad-spectrum for lower respiratory tract infections (RTIs) and narrow-spectrum for upper RTIs. These findings may elucidate the issues to especially focus on regarding excessive use of injections.

Comparison of pediatric antibiotic prescribing practice between low and high prescribers for children in primary care

BACKGROUND

Antibiotic prescribing is more prevalent in children. Many factors influence this practice, including the burden of outpatient visits. We aimed to compare antibiotic prescribing for children by low prescribers (LP) and high prescribers (HP) in primary care.

METHODS

We analyzed pediatric prescriptions in primary care in Istanbul. Among the physicians randomly selected by systematic sampling, those generating ≥1 pediatric prescription/day (n=1218) were defined as LP or HP when they belonged to the lowest (n=305) or highest (n=304) quartile of prescribing, respectively. The antibiotic prescribing characteristics of these groups were compared.

RESULTS

We identified that 38.5% of the prescriptions written by physicians included antibiotics, significantly higher in HPs (38.8%) than in LPs (37.2%), (p=0.04). Among antibiotic-containing prescriptions, the mean number of drugs and boxes and the percentage of prescriptions containing injectable drugs/antibiotics were significantly higher in HPs compared to that in LPs. We detected that co-amoxiclav was the most frequently prescribed antibiotic in the LP and HP groups (61.1% and 48.3%, respectively). Stratification of antibiotics by their spectra showed that 11.2% were narrow, 79.8% were broad and 0.5% were ultra-broad-spectrum drugs. LPs were significantly more likely to prescribe broad-spectrum antibiotics (82.5%) than do HPs (78.9%,p < 0.001).

CONCLUSIONS

Antibiotic prescribing remains excessive in pediatric primary care, slightly more marked in HPs. While HPs also tend to prescribe a higher number of overall and injectable drugs/antibiotics, broad-spectrum anti-biotherapy seems to be more practiced by LPs surprisingly. Both physician groups appeared to prefer either narrow- or broad-spectrum drugs without paying enough attention to their pharmacodynamic properties.

Utilization of biotechnological drugs in rare diseases requiring the use of off-label drugs in children in Turkey

Background/aim

Pediatric patients, especially those with rare diseases, represent a population that has a high tendency towards off- label drug use (OLDU) and needs a more careful practice of pharmacotherapy than in adults. We aimed to investigate biotechnological drug use in children with rare diseases requiring OLDU.

Materials and methods

This retrospective study examined all single-diagnosed OLDU applications (n = 5792) for 4992 children (<18- year) in Turkey. Applications of rare diseases were selected, and their descriptive characteristics were examined, including demographic features of patients, biotechnological drug utilization status, and disease categories. The off-label statuses of the drugs at the end of 2020 were also examined.

Results

In total, 77.7% (n = 4501) of OLDU applications were made for rare diseases. Biotechnological drug use was higher in rare disease applications than in nonrare diseases (37.9% vs. 19.2%, respectively; p < 0.0001). Canakinumab was the top applied biotechnological drug (73.2%). Compared to that in small-molecule drugs, the mean age of patients was higher in biotechnological drug-containing applications (8.1 ± 5.3 vs. 9.7 ± 4.9, respectively; p < 0.0001). Biotechnological drug use was higher in nonneoplastic rare diseases (40.3%) than in neoplastic rare diseases (26.4%), (p < 0.0001). At the end of 2020, the approval status of the off-label indications covered in 2016 was significantly higher for rare (24.4%) vs. nonrare (5.2%, p < 0.0001) diseases and for biotechnological (32.3%) vs. small- molecule (13.9%, p < 0.0001) drugs. In total, 87.7% of the drugs would have to be still used in the off-label setting at the end of 2020.

Conclusion

It was seen that more than three-quarters of the pediatric OLDU applications are for rare diseases, and the need for biotechnological OLDU in this group is almost 2-fold of small-molecule drug use. While further projected findings imply a higher approval tendency for rare diseases and biotechnological drugs, there seems to be more room for improvement for pediatric drug use.

Off-label drug use in pediatric patients: a comparative analysis with nationwide routine prescription data

BACKGROUND

Children constitute a special population for off-label drug use (OLDU), yet limited drug-focused data exist regarding pediatric OLDU in clinical practice. This study aimed to investigate pediatric OLDU practice and compare it with pediatric drug utilization patterns of routine prescribing data.

METHODS

This cross-sectional study examined all approved pediatric OLDU applications, compared with electronic prescription data on national Prescription Information System of Turkish Medicines and Medical Devices Agency in 2015. OLDU applications and prescriptions were analyzed for demographic characteristics, healthcare/socioeconomic indices as well as details of drugs and diagnoses.

RESULTS

We found 7,896 OLDU applications and 7,029,512 prescriptions for the pediatric population in 2015. OLDU applications and prescriptions were mostly practiced for `2-11-year-old` children (52.7% vs. 63.4%, respectively; p < 0.01). OLDU applications and prescriptions were detected to have a positive correlation with socio-economic development index (r = 0.45, p < 0.0001 and r: 0.40, p = 0.0002; respectively) and the physician density (r = 0.66, p < 0.0001 and r: 0.43, p < 0.0001; respectively). In addition, OLDU was also positively correlated with the number of hospital beds per province (r = 0.39, p = 0.0003). Antineoplastic/immunomodulating agents were the most commonly applied drug category in OLDU (47.0%), compared with respiratory system drugs (36.6%) in routine prescribing. Eculizumab (6.5%), mycophenolate (5.6%), and canakinumab (4.4%) were the top drugs used as off-label. OLDU applications and routine prescription data revealed the most frequent diagnosis as `I27-other pulmonary heart diseases` (7.4%) and `J06-acute upper respiratory infections` (12.6%), respectively.

CONCLUSIONS

This is the first nationwide study to show indication- and drug-centered aspects of pediatric OLDU and prescribing practice. Though OLDU applications is overall consistent with routine clinical practice in terms of demographics and institutional capacity, substantial variations exist regarding main drug classes and diseases. Our findings are expected to shed light on interventions focused on improving `indicated` pediatric use of drugs currently applied as off-label.

Patients' attitudes and knowledge about drug use: a survey in Turkish family healthcare centres and state hospitals

Background/aim: Irrational drug use is a common problem. This study aimed to evaluate patients' knowledge and habits concerning drug use, and compare them in terms of some sociodemographic characteristics. Materials and methods: A face-to-face questionnaire was given to outpatients from family healthcare centres (FHCs) and state hospitals (SHs) in 12 provinces in Turkey during May 2010. A total of 4470 patients (FHCs: 2209; SHs: 2261) responded to the questionnaire (response rate: 93.1%). Results: Getting prescriptions without a physical examination was common (second place in FHCs; third place in SHs); 51.0% stated that they wanted physicians to prescribe drugs that they had used before. More than half stated that antibiotics cured every illness. In addition, 55.9% reported that their relatives recommended drugs to them when they got ill; 37.1% reported that they recommended them to relatives as well. Of the survey respondents, 70.5% stated that they had stopped their medications before the recommended time. Patients' knowledge and attitudes about drug use showed significant differences in comparisons of sex, age, educational level, and social security. Conclusion: Patients' knowledge and attitudes about drugs were far from rational. To eliminate irrational use of drugs, public education about drug use is needed.

A nationwide evaluation of off-label drug utilization in Turkey

Background/aim: Off-label drug use (OLDU) is under the control of the Turkish Medicines and Medical Devices Agency (TMMDA) in Turkey. It was aimed to investigate demographic and medical features of patients with OLDU applications in Turkey. Materials and methods: A total of 4426 electronic OLDU application records of the TMMDA were evaluated retrospectively. Information regarding patients? demographic characteristics, diagnoses, requested drugs, institutions, and specialties of the physicians were evaluated. Results: OLDU applications were mostly made by rheumatologists (21.5%) and 95.2% of them were approved by the TMMDA. The mean age of the patients was 35 years and 54.4% of them were female. Off-label drugs were mostly prescribed for patients aged 18?64 years (62.1%) and were most frequently prescribed by physicians from university medical centers (81.0%). Systemic lupus erythematosus (10.1%) was the most common diagnosis. Mycophenolate (16.1%) and rituximab (10.1%) were the most frequently prescribed off-label drugs. There were differences regarding some characteristics of patients and their physicians among most frequently prescribed off-label drugs (P < 0.05). Conclusion: It is noteworthy that OLDU applications showed demographical and institutional differences. It is expected that this study will provide important contributions to physicians working in the relevant area with respect to treatment alternatives of diseases with treatment challenges.

Use of drugs subject to controlled prescriptions: a retrospective analysis

OBJECTIVE

Use of drugs that may lead to abuse or dependence are subject to controlled prescriptions (CPs) in many countries, and these are closely monitored by health authorities. According to national regulations in Turkey, CPs may be red coloured (RCPs) or green coloured (GCPs). The aim of this study was to evaluate the use of such drugs in Istanbul.

STUDY DESIGN

Retrospective case-control study.

MATERIAL AND METHODS

During the study period (01/01-31/12 2009), 502874 CPs were reported. Among these, 4000 CPs each month were randomly selected and evaluated.

RESULTS

The majority of GCPs were issued to women (55.6%), while the majority of RCPs were issued to men (68.4%). GCPs were most frequently prescribed by physicians working in private hospitals (33.6%) while RCPs by physicians working in university hospitals (39.7%). GCPs were mostly prescribed by psychiatrists (37.6%) while for RCPs were child and adolescent psychiatrists (35.9%). Psycholeptics (ATC code N05) were the most prescribed controlled drugs (CDs) (43.8%). Methylphenidate (53.9%) was the mostly prescribed on RCPs and alprazolam (39.6%) was on GCPs.

CONCLUSION

We demonstrate that utilization of CDs shows demographical and institutional differences. These data could be of help to improve surveillance of CDs as well as to train prescribers and patients.

Evaluation of controlled prescriptions with a diagnosis of surgical intervention

OBJECTIVE

Drugs subject to control (DSC) are commonly used in the preoperative, per-operative and postoperative periods. In this study, details of DSC use, that are required to be prescribed to green prescriptions (GP) or red prescriptions (RP), for a surgical diagnosis were evaluated.

MATERIAL AND METHODS

Controlled drug prescriptions (CDP) between January to December 2009 were investigated in the archives of the Istanbul Local Health Authority. 660 CDPs indicating a surgical diagnosis were retrospectively evaluated and those prescribed by surgical departments (SD)were compared to those written by internal medicine departments (ID).

RESULTS

SD physicians prescribed 72.7% of CDPs and 89.5% of prescriptions were for GP, and 10.5% were for RP. The physicians of SD were found to prescribe more RP than ID physicians. Most of the CDPs were written for women (58.8%) and mostly in private hospitals (40.9%). Among all the physicians, orthopedic surgeons prescribed these drugs the most (20.9%). Tramadol was the most common drug found in CDPs (55.5%).

CONCLUSION

DSCs, which have difficult prescription procedures, are used frequently in surgical interventions. The study shows that not only SD physicians, but also ID physicians prefer CDP. The study provides important clues to the usage patterns of DSCs. Recently evolving health care systems including prescriptions should use these findings obtained from the study.