Background Hearing aids (HA) is the primary medical intervention aimed to reduce hearing handicap. This study assessed the cost-effectiveness of HA for older adults who were volunteered to be screened for hearing loss in a community-based mobile hearing clinic (MHC). Methods Participants with (1) at least moderate hearing loss (≥40 dB HL) in at least one ear, (2) no prior usage of HA, (3) no ear related medical complications, and (4) had a Mini-Mental State Examination score ≥ 18 were eligible for this study. Using a delayed-start study design, participants were randomized into the immediate-start (Fitted) group where HA was fitted immediately or the delayed-start (Not Fitted) group where HA fitting was delayed for three months. Cost utility analysis was used to compare the cost-effectiveness of being fitted with HA combined with short-term, aural rehabilitation with the routine care group who were not fitted with HA. Incremental cost effectiveness ration (ICER) was computed. Health Utility Index (HUI-3) was used to measure utility gain, a component required to derive the quality adjusted life years (QALY). Total costs included direct healthcare costs, direct non-healthcare costs and indirect costs (productivity loss of participant and caregiver). Demographic data was collected during the index visit to MHC. Cost and utility data were collected three months after index visit and projected to five years. Results There were 264 participants in the Fitted group and 163 participants in the Not Fitted group. No between-group differences in age, gender, ethnicity, housing type and degree of hearing loss were observed at baseline. At 3 months, HA fitting led to a mean utility increase of 0.12 and an ICER gain of S$42,790/QALY (95% CI: S$32, 793/QALY to S$62,221/QALY). At five years, the ICER was estimated to be at S$11,964/QALY (95% CI: S$8996/QALY to S$17,080/QALY) assuming 70% of the participants continued using the HA. As fewer individuals continued using their fitted HA, the ICER increased. Conclusions HA fitting can be cost-effective and could improve the quality of life of hearing-impaired older individuals within a brief period of device fitting. Long term cost-effectiveness of HA fitting is dependent on its continued usage.
We report a rare case of a hypernephroma that had metastasized to the sinonasal area as a solitary mass. Despite much difficulty, a confirmatory biopsy of the nasal mass was obtained. After radiotherapy had failed to arrest the tumor's growth, the mass was removed via a craniofacial resection. This case illustrates the importance of(1)a high index of suspicion in differentiating this rare tumor from other benign or malignant diseases, (2) awareness of the risk of hemorrhage and the role of preoperative embolization, (3) the need for paraffin histology rather than fine-needle aspiration or frozen section diagnosis, (4) individualizing therapy after due consideration of the characteristics of both the patient and the tumor, and (5) keeping abreast of the most current therapeutic modalities so that patient management can be individualized and optimized. Surgical excision offers the best hope for long-term survival, and it reduces the degree of pain, epistaxis, and disfigurement from the expanding tumor. When such tumors are not resectable, management with radiotherapy, hormonal therapy, immunotherapy, or chemotherapy can be considered.
Background Exposure to microbial cell wall agents (MCWAs) has been related to the risk for atopy, otitis, and rhinitis. Objectives To relate domestic exposure to two important MCWAs-b-glucan and endotoxin-to the risk for otitis, rhinitis, atopy, and allergy in a sample of children from Singapore. Methods Subjects (n = 98) were recruited from July 2006 to December 2008. Blood samples were taken to determine nonspecific IgE and skin prick tests were performed. Dust samples were collected from the bedrooms of the subjects and analyzed for the content of b-glucan and endotoxin, using the Limulus method. Results Levels of IgE were significantly higher among children with rhinitis, and these children also had a larger proportion of atopics. There were no differences in b-glucan values between children with otitis, children with rhinitis, and controls. Endotoxin levels were lower in the homes of children with otitis, with a tendency for the levels to be lower in those with rhinitis. Among children with a high level of b-glucan, there was a higher proportion of those with high IgE values and atopy. Conclusions The results suggest that a low level of endotoxin is a risk factor for otitis and that a high level of b-glucan is a risk factor for atopic sensitisation. Reactions to domestic indoor exposure are determined by several indoor agents and their relative exposure levels.
Background Hearing aids (HA) is the primary medical intervention aimed to reduce hearing handicap. This study assessed the cost-effectiveness of HA for older adults who were volunteered to be screened for hearing loss in a community based mobile hearing clinic (MHC).Methods Participants with (1) at least moderate hearing loss (≥40 dB HL) in at least one ear, (2) no prior usage of HA, (3) no ear related medical complications, and (4) had a Mini-Mental State Examination score ≥18 were eligible for this study. Using a delayed-start study design, participants were randomized into the immediate-start (Fitted) group where HA was fitted immediately or the delayed-start (Not Fitted) group where HA fitting was delayed for three months. Cost utility analysis was used to compare the cost-effectiveness of being fitted with HA combined with short-term, aural rehabilitation with the routine care group who were not fitted with HA. Incremental cost effectiveness ration (ICER) was computed. Health Utility Index (HUI-3) was used to measure utility gain, a component required to derive the quality adjusted life years (QALY). Total costs included direct healthcare costs, direct non-healthcare costs and indirect costs (productivity loss of participant and caregiver). Demographic data was collected during the index visit to MHC. Cost and utility data were collected three months after index visit and projected to five years.Results There were 264 participants in the Fitted group and 163 participants in the Not Fitted group. No between-group differences in age, gender, ethnicity, housing type and degree of hearing loss were observed at baseline. At 3 months, HA fitting led to a mean utility increase of 0.12 and an ICER gain of S$42,790/QALY (95% CI: S$32, 793/QALY to S$62,221/QALY). At five years, the ICER was estimated to be at S$11,964/QALY (95% CI: S$8,996/QALY to S$17,080/QALY) assuming 70% of the participants continued using the HA. As fewer individuals continued using their fitted HA, the ICER increased.Conclusions HA fitting can be cost-effective and could improve the quality of life of hearing-impaired older individuals within a brief period of device fitting. Long term cost-effectiveness of HA fitting is dependent on its continued usage.
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