How do Cochrane authors conduct web searching to identify studies? Findings from a cross-sectional sample of Cochrane Reviews.

BACKGROUND Searching the World Wide Web using search engines and websites can be conducted to identify studies for systematic reviews. When searching to support systematic reviews, the searcher faces challenges in using the basic search interfaces of most search engines and websites. OBJECTIVES To describe and evaluate current practice of web searching in a cross-sectional sample of Cochrane Reviews. The study also describes the stated aims of web searching, i.e. the identification of published or unpublished studies or both. METHODS A six-month cross-sectional sample of Cochrane Reviews was identified via the Cochrane Library. Reviews were inspected for detail about web searching. Findings were described and evaluated using a framework of key principles for web searching. RESULTS 423 Cochrane Reviews published August 2016-January 2017 were identified of which 61 (14%) reported web searching. Web searches were typically simplified versions of the bibliographic database search. Advanced and iterative approaches were not widely used. Google Search and Google Scholar were the most popular search engines. Most reports stated identification of grey literature as their aim. CONCLUSION Basic web search interfaces necessitate simple searches. However, there is scope to use more diverse search features and techniques and a greater variety of search engines.

[1]  P. Shah,et al.  Xylitol for preventing acute otitis media in children up to 12 years of age. , 2011, The Cochrane database of systematic reviews.

[2]  J. Car,et al.  Light therapies for acne. , 2016, The Cochrane database of systematic reviews.

[3]  P. Wiffen,et al.  Aspirin for acute treatment of episodic tension-type headache in adults. , 2017, The Cochrane database of systematic reviews.

[4]  R. Orrell,et al.  Pharmacological treatments for Friedreich ataxia. , 2016, The Cochrane database of systematic reviews.

[5]  T. Xiong,et al.  Hyperbaric oxygen therapy for people with autism spectrum disorder (ASD). , 2016, The Cochrane database of systematic reviews.

[6]  P. Shekelle,et al.  Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015: elaboration and explanation , 2016, British Medical Journal.

[7]  N. Hairi,et al.  Interventions for preventing abuse in the elderly. , 2016, The Cochrane database of systematic reviews.

[8]  Simon Briscoe,et al.  A review of the reporting of web searching to identify studies for Cochrane systematic reviews , 2018, Research synthesis methods.

[9]  Jo C Dumville,et al.  Internal dressings for healing perianal abscess cavities. , 2016, The Cochrane database of systematic reviews.

[10]  Piyush Jani,et al.  Minimally invasive surgery versus radiotherapy/chemoradiotherapy for small-volume primary oropharyngeal carcinoma. , 2016, The Cochrane database of systematic reviews.

[11]  R. Ejemot-Nwadiaro,et al.  Routine vitamin A supplementation for the prevention of blindness due to measles infection in children. , 2011, The Cochrane database of systematic reviews.

[12]  A Eisinga,et al.  Compression stockings for preventing deep vein thrombosis in airline passengers. , 2006, The Cochrane database of systematic reviews.

[13]  Josip Car,et al.  Training interventions for improving telephone consultation skills in clinicians. , 2017, The Cochrane database of systematic reviews.

[14]  V. Y. Moraes,et al.  Surgical interventions (microfracture, drilling, mosaicplasty, and allograft transplantation) for treating isolated cartilage defects of the knee in adults. , 2016, The Cochrane database of systematic reviews.

[15]  S. de Lusignan,et al.  Interventions to improve hearing aid use in adult auditory rehabilitation. , 2016, The Cochrane database of systematic reviews.

[16]  A. Marti-Carvajal,et al.  Antibiotics for treating osteomyelitis in people with sickle cell disease. , 2016, The Cochrane database of systematic reviews.

[17]  Neal R Haddaway,et al.  The Role of Google Scholar in Evidence Reviews and Its Applicability to Grey Literature Searching , 2015, PloS one.

[18]  C. Wiysonge,et al.  Public stewardship of private for‐profit healthcare providers in low‐ and middle‐income countries , 2016, The Cochrane database of systematic reviews.

[19]  K. Dwan,et al.  Vilanterol and fluticasone furoate for asthma. , 2016, The Cochrane database of systematic reviews.

[20]  S. Jones,et al.  Neuromuscular electrical stimulation for muscle weakness in adults with advanced disease. , 2016, The Cochrane database of systematic reviews.

[21]  A. Oxman,et al.  Interventions to reduce corruption in the health sector , 2016, The Cochrane database of systematic reviews.

[22]  N. Adhikari,et al.  Cough augmentation techniques for extubation or weaning critically ill patients from mechanical ventilation. , 2017, The Cochrane database of systematic reviews.

[23]  M. Munavvar,et al.  Patient- and parent-initiated oral steroids for asthma exacerbations. , 2016, The Cochrane database of systematic reviews.

[24]  Alan L. Mackay,et al.  Publish or perish , 1974, Nature.

[25]  David A. Jolliffe,et al.  Vitamin D for the management of asthma. , 2023, The Cochrane database of systematic reviews.

[26]  Josip Car,et al.  Automated telephone communication systems for preventive healthcare and management of long-term conditions. , 2016, The Cochrane database of systematic reviews.

[27]  Claire Stansfield,et al.  Search wide, dig deep: literature searching for qualitative research. An analysis of the publication formats and information sources used for four systematic reviews in public health , 2014, Research synthesis methods.

[28]  Paracetamol (acetaminophen) for prevention or treatment of pain in newborns. , 2016, The Cochrane database of systematic reviews.

[29]  Andrew MacFarlane Evaluation of web search for the information practitioner , 2007, Aslib Proc..

[30]  G. Flodgren,et al.  External inspection of compliance with standards for improved healthcare outcomes. , 2016, The Cochrane database of systematic reviews.

[31]  J. Walters,et al.  Inhaled corticosteroids with combination inhaled long-acting beta2-agonists and long-acting muscarinic antagonists for chronic obstructive pulmonary disease. , 2016, The Cochrane database of systematic reviews.

[32]  K. Vincent,et al.  Human chorionic gonadotrophin priming for fertility treatment with in vitro maturation. , 2016, The Cochrane database of systematic reviews.

[33]  Balwinder Singh,et al.  Nitrates for the prevention of cardiac morbidity and mortality in patients undergoing non-cardiac surgery. , 2016, The Cochrane database of systematic reviews.

[34]  J. Walters,et al.  Pneumococcal vaccines for preventing pneumonia in chronic obstructive pulmonary disease. , 2017, The Cochrane database of systematic reviews.

[35]  I. Gaminde,et al.  First-line combination therapy versus first-line monotherapy for primary hypertension. , 2017, The Cochrane database of systematic reviews.

[36]  Jessica Bates,et al.  Will Web Search Engines Replace Bibliographic Databases in the Systematic Identification of Research , 2017 .

[37]  Gunther Eysenbach,et al.  Going, Going, Still There: Using the WebCite Service to Permanently Archive Cited Web Pages , 2005, AMIA.

[38]  S. Leatherdale,et al.  Applying systematic review search methods to the grey literature: a case study examining guidelines for school-based breakfast programs in Canada , 2015, Systematic Reviews.

[39]  A. Thamboo,et al.  Needle Aspiration versus Incision and Drainage for the Treatment of Peritonsillar Abscesses , 2013 .

[40]  Catriona Kennedy,et al.  Therapeutic exercises for affecting post-treatment swallowing in people treated for advanced-stage head and neck cancers. , 2016, The Cochrane database of systematic reviews.

[41]  D. Kendrick,et al.  School-based education programmes for the prevention of unintentional injuries in children and young people. , 2016, The Cochrane database of systematic reviews.

[42]  A. Smyth,et al.  Pancreatic enzyme replacement therapy for people with cystic fibrosis , 2010 .

[43]  Jacqui Webster,et al.  Population-level interventions in government jurisdictions for dietary sodium reduction. , 2016, The Cochrane database of systematic reviews.

[44]  J. Jakobsen,et al.  Non-invasive positive pressure ventilation for acute asthma in children. , 2016, The Cochrane database of systematic reviews.

[45]  A. Chattopadhyay,et al.  Bifeprunox versus placebo for schizophrenia. , 2016, The Cochrane database of systematic reviews.

[46]  A. Booth,et al.  A comparison of results of empirical studies of supplementary search techniques and recommendations in review methodology handbooks: a methodological review , 2017, Systematic Reviews.

[47]  Tamara Rader,et al.  Searching for and selecting studies , 2019, Cochrane Handbook for Systematic Reviews of Interventions.

[48]  R. Moore,et al.  Topical capsaicin (low concentration) for chronic neuropathic pain in adults , 2013, The Cochrane database of systematic reviews.

[49]  E. Martínez,et al.  Polymer‐based oral rehydration solution for treating acute watery diarrhoea , 2016, The Cochrane database of systematic reviews.

[50]  Angus Waddell,et al.  Interventions for children with ear discharge occurring at least two weeks following grommet (ventilation tube) insertion. , 2016, The Cochrane database of systematic reviews.

[51]  W. Kernohan,et al.  Interventions for prevention of bullying in the workplace. , 2012, The Cochrane database of systematic reviews.

[52]  Ting Zhang,et al.  Anti-vascular endothelial growth factor for choroidal neovascularisation in people with pathological myopia. , 2016, The Cochrane database of systematic reviews.

[53]  Brian H. Rowe,et al.  Combined inhaled beta-agonist and anticholinergic agents for emergency management in adults with asthma. , 2017, The Cochrane database of systematic reviews.

[54]  Dwayne Van Eerd,et al.  Searching for grey literature for systematic reviews: challenges and benefits , 2014, Research synthesis methods.

[55]  K. Harrild,et al.  Surgery for tubal infertility. , 2008, The Cochrane database of systematic reviews.

[56]  M. Torloni,et al.  Zinc supplementation for tinnitus. , 2016, The Cochrane database of systematic reviews.

[57]  C. Bunce,et al.  Ab interno trabecular bypass surgery with Trabectome for open angle glaucoma. , 2016, The Cochrane database of systematic reviews.

[58]  E. Tacconelli Systematic reviews: CRD's guidance for undertaking reviews in health care , 2010 .

[59]  J. Grimshaw,et al.  Tools developed and disseminated by guideline producers to promote the uptake of their guidelines. , 2016, The Cochrane database of systematic reviews.

[60]  A. Chang,et al.  Exhaled nitric oxide levels to guide treatment for adults with asthma. , 2016, The Cochrane database of systematic reviews.

[61]  M. V. van Driel,et al.  Different antibiotic treatments for group A streptococcal pharyngitis. , 2010, The Cochrane database of systematic reviews.

[62]  Christopher D. Manning,et al.  Introduction to Information Retrieval , 2010, J. Assoc. Inf. Sci. Technol..

[63]  Dean Giustini,et al.  Google Scholar is not enough to be used alone for systematic reviews , 2013, Online journal of public health informatics.

[64]  A. Chang,et al.  Exhaled nitric oxide levels to guide treatment for children with asthma. , 2016, The Cochrane database of systematic reviews.

[65]  F. Baumgartner,et al.  What is "minimally invasive"? , 1998, The Annals of thoracic surgery.

[66]  I. Higginson,et al.  Benzodiazepines for the relief of breathlessness in advanced malignant and non-malignant diseases in adults. , 2016, The Cochrane database of systematic reviews.

[67]  J. Branney,et al.  Liposomal bupivacaine peripheral nerve block for the management of postoperative pain. , 2017, Nursing standard (Royal College of Nursing (Great Britain) : 1987).

[68]  Claire Stansfield,et al.  Exploring issues in the conduct of website searching and other online sources for systematic reviews: how can we be systematic? , 2016, Systematic Reviews.

[69]  J. George,et al.  Non-medical prescribing versus medical prescribing for acute and chronic disease management in primary and secondary care. , 2016, The Cochrane database of systematic reviews.

[70]  A. Lethaby,et al.  Local oestrogen for vaginal atrophy in postmenopausal women. , 2016, The Cochrane database of systematic reviews.

[71]  A. Wareing Thromboelastography (TEG) or thromboelastometry (ROTEM) to monitor haemostatic treatment versus usual care in adults or children with bleeding , 2017, International journal of nursing practice.

[72]  G Eysenbach,et al.  Evaluation of the usefulness of Internet searches to identify unpublished clinical trials for systematic reviews. , 2001, Medical informatics and the Internet in medicine.

[73]  S. Paravastu,et al.  Endovenous ablation therapy (laser or radiofrequency) or foam sclerotherapy versus conventional surgical repair for short saphenous varicose veins. , 2016, The Cochrane database of systematic reviews.

[74]  M. van Wely,et al.  Septum resection for women of reproductive age with a septate uterus. , 2017, The Cochrane database of systematic reviews.

[75]  R. Moore,et al.  Ketoprofen for episodic tension-type headache in adults. , 2016, The Cochrane database of systematic reviews.

[76]  Neal R. Haddaway,et al.  A rapid method to increase transparency and efficiency in web-based searches , 2017, Environmental Evidence.

[77]  Jim Black,et al.  Phase IV studies , 2015 .

[78]  J. Bhatt,et al.  Eradication therapy for Burkholderia cepacia complex in people with cystic fibrosis. , 2016, The Cochrane database of systematic reviews.