Background Although the risks of needlestick and sharps injuries (NSIs) for dentists are well recognized, most papers published only described the frequency of occupational exposure to NSIs. Less has been reported assessing factors contributing to exposure to NSIs. The purpose of this study was to update the epidemiology of NSIs among dentists in Taiwan and identify factors affecting NSIs in order to find preventive strategies. Methodology/Principal Findings A nationwide survey was conducted in dentists at 60 hospitals and 340 clinics in Taiwan. The survey included questions about factors supposedly affecting exposure to NSIs, such as dentist and facility characteristics, knowledge and attitudes about infectious diseases, and practices related to infection control. Univariate and multivariate logistic regression analyses were conducted to determine the association between risk factors and exposure to NSIs. In total, 434 (74.8%) of 580 dentists returned the survey questionnaires, and 100 (23.0%) reported that they had experienced more than one NSI per week. Our data showed that the risk of occupational NSIs is similarly heightened by an older age (odds ratio [OR], 3.18; 95% confidence interval [CI], 1.62–6.25), more years in practice (OR, 2.57; 95% CI, 1.41–4.69), working in clinics (OR, 1.73; 95% CI, 1.08–2.77), exhibiting less compliance with infection-control procedures (OR, 1.82; 95% CI, 1.04–3.18), having insufficient knowledge of blood-borne pathogens (OR, 1.67; 95% CI, 1.04–2.67), and being more worried about being infected by blood-borne pathogens (OR, 1.82; 95% CI, 1.05–3.13). Conclusions/Significance High rates of NSIs and low compliance with infection-control procedures highly contribute to the chance of acquiring a blood-borne pathogen infection and threaten occupational safety. This study reveals the possible affecting factors and helps in designing prevention strategies for occupational exposure to NSIs.
WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT • Increased frequency of electrolyte abnormalities and cardiac arrhythmias among patients exposed to digoxin–diuretic interactions has been well‐documented in numerous descriptive studies. • Nonetheless, a clear causal relationship has not been established in these studies. WHAT THIS STUDY ADDS • The risks of digoxin intoxication associated with use of digoxin in combination with any diuretic use, types of diuretics, combinations of diuretics, and individual diuretics were quantified using a population‐based nested case–control study design. • The combined therapy of digoxin with any diuretic is associated with a 3.08‐fold increase in the risk of digoxin intoxication. • Regarding diuretic class, the risk carried by loop diuretics is greater than that of thiazides or potassium–sparing diuretics, and the risk varies with different combinations of diuretic classes and individual diuretics. AIMS To quantify the digoxin intoxication risk associated with exposure to digoxin–diuretic interactions, and evaluate whether the risk varies by diuretic type, individually or in combination. METHODS This was a population‐based nested case–control study in which data from the National Health Insurance Research Database (NHIRD) in Taiwan were analysed. RESULTS The study cohort comprised 154 058 heart failure (HF) patients taking digoxin between 2001 and 2004, in whom digoxin intoxication requiring a hospitalization (ICD‐9 code 972.1) occurred in 595 cases. A total of 28 243 matched controls were also selected for analysis. Cases were 3.08 times (adjusted OR 3.08, 95% CI 2.50, 3.79) more likely to have been prescribed diuretic medication in the previous month than controls. Regarding the class of diuretics, loop diuretics carried the greatest risk (adjusted OR 2.97, 95% CI 2.35, 3.75), followed by thiazides (OR 2.36, 95% CI 1.70, 3.29) and potassium‐sparing diuretics (OR 1.72, 95% CI 0.83, 3.56). The risk was also observed to vary with different combinations of diuretics, and the loops/thiazides/potassium‐sparing diuretics combination carried the greatest risk (adjusted OR 6.85, 95% CI 4.93, 9.53). Among the individual diuretics examined, hydrochlorothiazide carried the greatest risk (adjusted OR 4.63, 95% CI 2.50, 8.57). CONCLUSIONS This study provided empirical evidence that digoxin–diuretic interactions increased the risk of hospitalization for digoxin intoxication in HF patients. The risk was particularly high for concomitant use of digoxin with a combination of loop diuretics, thiazide and potassium‐sparing diuretics. The combined use of digoxin and diuretics should be avoided if possible.
BackgroundThe impact of anti-hypertensive treatment on fetus was unclear, and hence, remains controversial. We set out in this study to estimate the prevalence of adverse pregnancy outcomes, including low birth weight, preterm delivery and small for gestational age amongst women with chronic hypertension, and to determine whether the use of anti-hypertensive drugs increases the risk of such adverse pregnancy outcomes.Methodology/Principal FindingsA total of 2,727 hypertension mothers and 8,181 matched controls were identified from the population-based cohort. These hypertension women were divided into seven sub-groups according to different types of prescribed anti-hypertensive drugs. Multivariable logistic regressions were conducted to estimate the risk of low birth weight, preterm birth and small for gestational age. Increased risk of low birth weight (OR = 2.29, 95% CI = 1.95–2.68), preterm birth (OR = 2.18, 95% CI = 1.89–2.52) and small for gestational age (OR = 1.62, 95% CI = 1.45–1.81) were all discernible within the hypertension group after adjusting for potential confounding factors. The increased ORs were found to differ with different types of anti-hypertensive drugs. Women who received vasodilators were associated with the highest risk of low birth weight (OR = 2.96, 95% CI = 2.06–4.26), preterm birth (OR = 2.92 95% CI = 2.06–4.15) and small for gestational age (OR = 2.12, 95% CI = 1.60–2.82).Conclusions/SignificanceThis finding is important for practitioners, because it indicates the need for caution while considering the administration of anti-hypertensive drugs to pregnant women. These observations require confirmation in further studies that can better adjust for the severity of the underlying HTN.
Compliance with recommended infection control practices in East Asia has not been clearly documented. To investigate changes in compliance with recommended infection control practices over a eleven-year period and to identify affecting factors, two nationwide cross-sectional surveys of dentists in Taiwan were conducted in 1999 and 2010. An anonymous questionnaire that assessed characteristics of dentists and practices of recommended infection control guidelines was mailed. Results showed that all infection control practices surveyed had improved in 2010. Factors affecting compliance with wearing basic protective barriers in 2010 were being female (odds ratio [OR]=3.631, p<0.001), aged forty-one to ifty years (OR=3.991, p<0.05), treating twentyone to thirty patients per day (OR=2.690, p<0.05), and having information sources from seminars and conferences (OR=2.659, p<0.05). Although infection control practices have improved over time, there is still much room to increase rates of wearing a head cap, protective eyewear, and a face mask and disinfecting impression materials. Providing correct information about disinfection and sterilization processes through the Internet might be effective in improving compliance.Hsin-Chung Cheng is Dean,
This study provides empirical evidence that digoxin–clarithromycin interactions do increase the risk of hospitalization for digoxin intoxication in HF patients and that this risk could reach as high as 55.4-fold. We strongly recommend that the combined use of digoxin with clarithromycin should be avoided and that digoxin concentrations should be monitored closely in situations where the combination can not be avoided.
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