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Purpose The lack of epidemiological data on the proportion of olfactory dysfunction (OD) using comprehensive olfactory assessment in healthy adults in Scandinavia motivated to the present study which aimed to explore the proportion of OD in voluntary healthy Norwegian adults, assessed by Sniffin’ Sticks, and its correlation to self-reported olfactory function. Furthermore, sociodemographic and clinical factors associated with olfactory function were analysed. Methods The sample included 405 Norwegian participants, aged 18–78 years, 273 women and 132 men, who underwent olfactory testing with extensive Sniffin’ Sticks test, allergy testing, clinical examination with nasal endoscopy and completed a self-administered questionnaire, including self-evaluation of olfactory function on a 100 mm Visual Analogue Scale. Results We found that 37% had OD, of which 1.2% had anosmia assessed with extensive Sniffin’ Sticks test. The proportion of hyposmia and anosmia increased with age. Men and participants with low education had poorer olfactory function scores. Allergy, smoking status, general health and endoscopic findings were not associated with measured olfactory function. We found no correlation between self-reported and measured olfactory function. Conclusions This study has identified that a large proportion of our sample of voluntary healthy Norwegian adults have OD, considerably more common in older adults and somewhat more common in men and individuals with low education. The lack of correlation between self-reported and measured olfactory function highlights the importance of using validated tests for a reliable olfactory evaluation.

Background: Few have investigated long-term effect of treatment of posttraumatic olfactory dysfunction (OD). Aims/objectives: To explore if sequential treatment with corticosteroids and olfactory training (OT) improved smell in patients with OD after moderate and severe traumatic brain injury (TBI). Material and methods: Twenty-two patients with persistent OD, mean 62 months after trauma, completed an open uncontrolled intervention study of treatment for 10 d with oral corticosteroids and thereafter for 3 months with OT twice daily. Olfaction was assessed by Sniffin’ Sticks. They were tested at four-time points, with the last assessment 12 months after baseline measurements. Results: Mean age at trauma was 45 (SD 14) years. Mean threshold, discrimination and identification (TDI) score at baseline was 14.4 (SD 7.3) and increased to mean 20.8 (SD 7.4) after 1 year (minimum −3.0; maximum 19.5, p value

To assess the frequency and factors associated with posttraumatic olfactory dysfunction, including anosmia, in a follow-up of patients with moderate and severe traumatic brain injury (TBI).The setting was a cross-sectional study of patients that were consecutively included in the Trondheim TBI database, comprising injury-related variables. Eligible participants 18-65 years were contacted 9-104 months post trauma and asked olfactory-related questions. Those reporting possible posttraumatic change of olfaction were invited to further examination using the Sniffin' Sticks panel.Of 211 eligible participants, 182 (86.3%) took part in telephone interviews and 25(13.7%) were diagnosed with olfactory dysfunction. 60% of these, or 8.2% of all participants, had anosmia. In age-adjusted logistic regression analyses, fall (OR 2.5, 95% CI 1.0-6.2), skull base fracture (OR 2.9, 95% CI 1.2-7.1) and cortical contusion(s) (OR 6.0, 95% CI 2.1-17.3) were associated with olfactory dysfunction. In an analysis of anosmia, fall (OR 3.4, 95% CI 1.1-10.6) and cortical contusion(s) (OR 19.7, 95% CI 2.5-156.0) were associated with the outcome.Of the study participants 13.7% had olfactory dysfunction and 8.2% had anosmia. Higher age, trauma caused by fall and CT displaying skull base fracture and cortical contusion(s) were related to olfactory dysfunction.

PURPOSE: Surgical quality registers provide tools to measure and improve the outcome of surgery. International register collaboration creates an opportunity to assess and critically evaluate national practices, and increases the size of available datasets. Even though millions of yearly tonsillectomies and tonsillotomies are performed worldwide, clinical practices are variable and inconsistency of evidence regarding the best clinical practice exists. The need for quality improvement actions is evident. We aimed to systematically investigate the existing tonsil surgery quality registers found in the literature, and to provide a thorough presentation of the planned Nordic Tonsil Surgery Register Collaboration.METHODS: A systematic literature search of MEDLINE and EMBASE databases (from January 1990 to December 2016) was conducted to identify registers, databases, quality improvement programs or comprehensive audit programs addressing tonsil surgery.RESULTS: We identified two active registers and three completed audit programs focusing on tonsil surgery quality registration. Recorded variables were fairly similar, but considerable variation in coverage, number of operations included and length of time period for inclusion was discovered.CONCLUSION: Considering tonsillectomies and tonsillotomies being among the most commonly performed surgical procedures in otorhinolaryngology, it is surprising that only two active registers could be identified. We present a Nordic Tonsil Surgery Register Collaboration-an international tonsil surgery quality register project aiming to provide accurate benchmarks and enhance the quality of tonsil surgery in Denmark, Finland, Norway and Sweden.

'Aim': To evaluate the Hearing Disability and Handicap Scale (HDHS) in an unselected population of adults with hearing impairment. 'Subjects and methods': A total of 342 consecutive adults who consulted the outpatient unit of audiology in the ENT department of a Norwegian university hospital answered HDHS, which intends to assess the negative consequences of hearing loss. The psychometric evaluation included internal structure analyses and made use of principal factors followed by varimax rotation, construct validity by corrected item–total correlation, and internal consistency reliability by Cronbach's alpha coefficient. 'Results': HDHS showed good psychometric properties with three factors, i.e. speech perception (five items), non-speech sound (five items) and participation restriction (10 items). All had good internal consistency reliability. The inventory distinguished between activity limitations and other problems related to social life participation. 'Conclusion:' HDHS was found to be adequate for research and clinical purposes in an unselected adult population with a quite different cultural background and language than the original one.