Background
Although there is a strong association between obesity and obstructive sleep apnoea (OSA), the effects of OSA and CPAP therapy on weight loss are less well known. The aim of this study in adults with class 3 obesity attending a multidisciplinary weight management program was to assess the relationship between OSA and CPAP usage, and 12-month weight change.
Methods
A retrospective cohort study of all patients commencing an intensive multidisciplinary publicly funded weight management program in Sydney, Australia, between March 2018 and March 2019. OSA was diagnosed using laboratory overnight sleep studies. Demographic and clinical data, and use of CPAP therapy was collected at baseline and 12 months. CPAP use was confirmed if used ≥4 h on average per night on download.
Results
Of the 178 patients who joined the program, 111 (62.4 %) completed 12 months in the program. At baseline, 63.1 % (n=70) of patients had OSA, of whom 54.3 % (n=38) were using CPAP. The non-OSA group had more females compared to the OSA with CPAP group and OSA without CPAP group (90.2 % vs. 57.9 % and 62.5 %, respectively; p=0.003), but there were no significant baseline differences in BMI (50.4±9.3 vs. 52.1±8.7 and 50.3±9.5 kg/m2, respectively; p=0.636). There was significant weight loss across all three groups at 12 months. However, there were no statistically significant differences across groups in the percentage of body weight loss (OSA with CPAP: 6.3±5.6 %, OSA without CPAP: 6.8±6.9 %, non-OSA: 7.2±6.5 %; p=0.844), or the proportion of patients who achieved ≥5 % body weight loss (OSA with CPAP: 57.9 %, OSA without CPAP: 59.4 %, non-OSA: 65.9 %; p=0.743). In patients with T2DM, there was a significant reduction in HbA1c from baseline to 12 months (7.8±1.7 % to 7.3±1.4 %, p=0.03), with no difference between groups (p=0.997).
Conclusions
This multidisciplinary weight management program resulted in significant weight loss at 12 months, regardless of OSA diagnosis or CPAP use in adults with class 3 obesity. Larger studies are needed to further investigate the effects of severity of OSA status and CPAP use in weight management programs. Until completed, this study suggests that the focus should remain on implementing lifestyle changes and weight management regardless of OSA status.
Aims
Pharmaco-invasive percutaneous coronary intervention (PI-PCI) is recommended for patients with ST-elevation myocardial infarction (STEMI)who are unable to undergo timely primary PCI (pPCI). The present study examined late outcomes after PI-PCI (successful reperfusion followed by scheduled PCI or failed reperfusion and rescue PCI)compared with timely and late pPCI (>120 min from first medical contact).
Methods and results
All patients with STEMI presenting within 12 h of symptom onset, who underwent PCI during their initial hospitalization at Liverpool Hospital (Sydney), from October 2003 to March 2014, were included. Amongst 2091 STEMI patients (80% male), 1077 (52%)underwent pPCI (68% timely, 32% late), and 1014 (48%)received PI-PCI (33% rescue, 67% scheduled). Mortality at 3 years was 11.1% after pPCI (6.7% timely, 20.2% late) and 6.2% after PI-PCI (9.4% rescue, 4.8% scheduled); P < 0.01. After propensity matching, the adjusted mortality hazard ratio (HR) for timely pPCI compared with scheduled PCI was 0.9 (95% CIs 0.4–2.0) and compared with rescue PCI was 0.5 (95% CIs 0.2–0.9). The adjusted mortality HR for late pPCI, compared with scheduled PCI was 2.2 (95% CIs 1.2–3.1)and compared with rescue PCI, it was 1.5 (95% CIs 0.7–2.0).
Conclusion
Patients who underwent late pPCI had higher mortality rates than those undergoing a pharmaco-invasive strategy. Despite rescue PCI being required in a third of patients, a pharmaco-invasive approach should be considered when delays to PCI are anticipated, as it achieves better outcomes than late pPCI.
Breast cancer is the most common cause of cancer amongst Australian women and the second most common cause of cancer mortality. Despite the proven effectiveness of early intervention, screening rates remain subpar across many regions in New South Wales (NSW). Screening rates are particularly low within the culturally and linguistically diverse (CALD) area of South Western Sydney (SWS). The objective of this study was to qualitatively explore barriers and facilitators to breast screening from the perspectives of CALD women from SWS. CALD women aged ≥40 who resided in SWS were invited to participate in a semi-structured interview to explore barriers and facilitators to breast cancer screening. Interviews were recorded, transcribed verbatim and analysed thematically to identify recurring patterns in the data. Sixteen women from CALD backgrounds participated. Women in this study reported absence of symptoms, fatalistic beliefs and embarrassment during the procedure to be the primary reasons for reluctance to screen. Lack of general practitioner (GP) endorsement, transport issues and pain associated with the procedure were also reported as additional barriers to screening. Common facilitators to screening included encouragement from family and friends, family history of cancer and media adverts. CALD women have distinctive barriers to mammography, which lead to poor breast screening participation rates. Opportunistic health promotion in this area is warranted and may lead to better health outcomes amongst this population.
The objective of the study is to understand language teachers’ perceptions regarding incorporating a corpus-based approach, i.e., corpus-based teaching methodology in English Language Teaching (ELT) classroom contexts. The design of the study is qualitative. The sample is taken from 19 English language teachers who are currently enrolled as students of Master of Applied Linguistics at NED University, Karachi, Pakistan. The instrument of the study is an open-ended questionnaire and also a focus groups based on semi-structured interviews. A thematic analysis of the interviews is conducted, as a result of which different themes emerged that conform to the benefits of incorporating corpus-based materials and activities in ELT classrooms. The findings show that use of a corpus-based teaching methodology in ELT classrooms is accepted as a new strategy for teaching different aspects and skills of English language such as vocabulary, grammar, reading, and writing. The pedagogical implications are found to be significant for curriculum designers, ELT teachers, and administrators at educational institutes where they want to enhance their students' interest and motivation levels. Material designers, corpus-based tools researchers, and teachers are suggested to collaborate for designing effective corpus-based materials for teaching as it increases the reliability of the teaching material.
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