22.11.2018 Views

Systematic-Review-Drug-Efficiency-Dissertation-Sample-Work-Tutors-India

Idiopathic Pulmonary Fibrosis (IPF) as the name suggests is a progressive disorder with no known aetiology. It is characterised by the thickening of the alveoli due to scarring resulting in cough. It is known to primarily occur in older adults over 60 years of age. The findings of IPF have a known association of Usual Interstitial Pneumonia (UIP) (Raghu et al., 2011; Kawano-Dourado & Kairalla, 2013; Wells, 2013). It has been deemed that the prognosis is generally poor when UIP has been confirmed (King et al., 2001b). The median survival rate of IPF is 50%, typically around two years after diagnosis (Raghu et al., 2011; King et al., 2001b).

Idiopathic Pulmonary Fibrosis (IPF) as the name suggests is a progressive disorder with no known aetiology. It is characterised by the thickening of the alveoli due to scarring resulting in cough. It is known to primarily occur in older adults over 60 years of age. The findings of IPF have a known association of Usual Interstitial Pneumonia (UIP) (Raghu et al., 2011; Kawano-Dourado & Kairalla, 2013; Wells, 2013). It has been deemed that the prognosis is generally poor when UIP has been confirmed (King et al., 2001b). The median survival rate of IPF is 50%, typically around two years after diagnosis (Raghu et al., 2011; King et al., 2001b).

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

esearch, the analysis of sensitivity was conducted based on the comparison of the results of<br />

the selected studies.<br />

3.6.4 Assessment of publication bias<br />

In many a meta-analysis, one important aspect is the assessment of publication bias<br />

wherein studies may tend to mislead with positive results only thereby neglecting the<br />

negative findings (Sutton, 2000; Haidich, 2010). Hence, there is a need to also assess the<br />

negative points of the research since neglecting the same would deliver to misleading<br />

conclusions. In this regard, the funnel plot test as stated in Sterne et al. (2011) is used to<br />

analyse publication bias.<br />

3.7 Summary<br />

The present chapter focused on the design of the research and the different methods<br />

used in the present research. The present research justified the use of meta-analysis for the<br />

present research with the research purposefully focussing on the examination of efficacy of<br />

combined drug treatment therapy. The selection of RCTs was also justified with the fact that<br />

RCTs yield important research information which are factual, numerical and could be<br />

statistically analysed further. The different steps that are involved in the research were<br />

elucidated and the combined data were examined using the Rev-Man 5.3 software.<br />

Dichotomous variables’ summative statistics are expressed using the Risk Ratio (RR)<br />

whereas the Mean Difference (MD) is used to summarise continuous data statistics. The<br />

combined estimates are presented with a Confidence Interval (CI) of 95 per cent and a p<br />

value less than 0.05 is considered to be of statistical significance. Statistical heterogeneity<br />

among the different researches selected is assessed using the I 2 value wherein an I 2 greater<br />

than 50 per cent is considered positive heterogeneity and the selection of Random- effect<br />

model will be facilitated. On the contrary, if the I 2 value is less than 50 per cent, then no<br />

heterogeneity prevails and a Fixed-effect model will be considered. The relative risk<br />

reduction (RRR) is computed using the formula “(1-Relative Risk) x 100”.<br />

© 2017-2018 All Rights Reserved, No part of this document should be modified/used without prior consent<br />

<strong>Tutors</strong> <strong>India</strong> - Your trusted mentor since 2001<br />

www.tutorindia.com I UK # +44-1143520021, info@tutorsindia.com<br />

Page 66 of 172

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!