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Dr Segun Bello

Postdoctoral Research Associate

South Cloisters 3.09

Segun is a public health physician and Epidemiologist. Alongside clinical practice, he worked as a Cochrane author and researcher with Cochrane Nigeria and the Calabar Institute of Tropical Diseases Research and Prevention, Nigeria. There he developed interest in clinical trials and evidence synthesis. He worked on a Cochrane review on the role of vitamin A in preventing blindness in children with measles infection and co-investigated the efficacy of a number of anitimalarial drugs. He has been involved in the conduct of Cochrane systematic review training workshops for more than several years and has conducted and supervised large scale population surveys in Nigeria.

After specialist training at the University of Calabar Teaching Hospital and University College Hospital, Ibadan Nigeria, Segun worked for four years as a researcher at the Nordic Cochrane Centre, Copenhagen Denmark during which time he also obtained a Ph.D in Public Health and Epidemiology at the University of Copenhagen. He worked on bias in randomised controlled trials and prepreclinical studies. He studied the effect of non-use of blinded outcome assessors on treatment estimates in animal model experiments, how authors addressed loss of blinding in trials and also showed that matching as a blinding technique in trials may often be defective.

He also has interests in evidence-based guideline development. He has worked on a World Health Organisation’s evidence synthesis team for the development of the guidelines on the management of health complications from female genital mutilation. He has also been involved in the training of several clinical guideline development committees of professional bodies in Nigeria.

He has several years of experience in teaching. He taught Community Medicine at the undergraduate medical schools of the University of Calabar and the University of Ibadan, Nigeria. He also taught Epidemiology, evidence-based medicine, systematic review and meta-analysis at the University of Ibadan postgraduate Masters’ programmes. He has trained Epidemiologists at the African Field Epidemiology Network (AFENET), in collaboration with the Centres for Disease Control (Atlanta).

He is currently working on health technology assessments at the PenTAG.

 

Qualifications

  • PhD
  • FMCPH
  • MPH
  • MB BS

Research

Key publications | Publications by category | Publications by year

Publications by category


Journal articles

Bello S (2017). Contemporary methodological issues in drug development: the functionality of blinding is poorly studied. Journal of Evidence-Based Medicine, 10(1), 61-65.
Bello S, Moustgaard H, Hróbjartsson A (2017). Unreported formal assessment of unblinding occurred in 4 of 10 randomized clinical trials, unreported loss of blinding in 1 of 10 trials. Journal of Clinical Epidemiology, 81, 42-50.
Bello S, Wei M, Hilden J, Hróbjartsson A (2016). The matching quality of experimental and control interventions in blinded pharmacological randomised clinical trials: a methodological systematic review. BMC Medical Research Methodology, 16(1).
Bello S, Krogsbøll LT, Gruber J, Zhao ZJ, Fischer D, Hróbjartsson A (2014). Lack of blinding of outcome assessors in animal model experiments implies risk of observer bias. Journal of Clinical Epidemiology, 67(9), 973-983.
Oliveri RS, Bello S, Biering-Sørensen F (2014). Mesenchymal stem cells improve locomotor recovery in traumatic spinal cord injury: Systematic review with meta-analyses of rat models. Neurobiology of Disease, 62, 338-353.
Moustgaard H, Bello S, Miller FG, Hróbjartsson A (2014). Subjective and objective outcomes in randomized clinical trials: definitions differed in methods publications and were often absent from trial reports. Journal of Clinical Epidemiology, 67(12), 1327-1334.
Bello S, Effa EE, Okokon EE, Oduwole OA (2013). Handwashing practice among healthcare providers in a teaching hospital in Southern Nigeria. International Journal of Infection Control, 9(4).
Nwakanma D, Etuk S, Bello S, Oriero E, Meremikwu M, Okebe J, Alaribe AA, Oduwole OA, Ejezie GC, Odey FA, et al (2011). Congenital Malaria in Calabar, Nigeria: the Molecular Perspective. The American Journal of Tropical Medicine and Hygiene, 84(3), 386-389.
Meremikwu M, Udoh E, Nwagbara B, Effa E, Oringanje C, Edet B, Nwagbara E, Bello S, Eke F (2011). Priority setting for systematic review of health care interventions in Nigeria. Health Policy, 99(3), 244-249.
Bello S, Ndifon WO, Ikpeme B, Fatiregun A, Oyo-Ita A (2011). Social determinants of alcohol use among drivers in Calabar. Nigerian Medical Journal, 52(4), 244-244.
Bello S, Fatiregun A, Oyo-Ita A, Ikpeme B (2010). Dose-response relationship between alcohol use and blood pressure among drivers of commercial vehicles in Calabar, Southern Nigeria. Journal of Public Health in Africa, 1(1).
Ikpeme I, Ngim N, Udosen A, Onuba O, Enembe O, Bello S (2010). External jig-aided intramedullary interlocking nailing of diaphyseal fractures: experience from a tropical developing centre. International Orthopaedics, 35(1), 107-111.

Publications by year


2017

Bello S (2017). Contemporary methodological issues in drug development: the functionality of blinding is poorly studied. Journal of Evidence-Based Medicine, 10(1), 61-65.
Bello S, Moustgaard H, Hróbjartsson A (2017). Unreported formal assessment of unblinding occurred in 4 of 10 randomized clinical trials, unreported loss of blinding in 1 of 10 trials. Journal of Clinical Epidemiology, 81, 42-50.

2016

Bello S, Wei M, Hilden J, Hróbjartsson A (2016). The matching quality of experimental and control interventions in blinded pharmacological randomised clinical trials: a methodological systematic review. BMC Medical Research Methodology, 16(1).

2014

Bello S, Krogsbøll LT, Gruber J, Zhao ZJ, Fischer D, Hróbjartsson A (2014). Lack of blinding of outcome assessors in animal model experiments implies risk of observer bias. Journal of Clinical Epidemiology, 67(9), 973-983.
Oliveri RS, Bello S, Biering-Sørensen F (2014). Mesenchymal stem cells improve locomotor recovery in traumatic spinal cord injury: Systematic review with meta-analyses of rat models. Neurobiology of Disease, 62, 338-353.
Moustgaard H, Bello S, Miller FG, Hróbjartsson A (2014). Subjective and objective outcomes in randomized clinical trials: definitions differed in methods publications and were often absent from trial reports. Journal of Clinical Epidemiology, 67(12), 1327-1334.

2013

Bello S, Effa EE, Okokon EE, Oduwole OA (2013). Handwashing practice among healthcare providers in a teaching hospital in Southern Nigeria. International Journal of Infection Control, 9(4).

2011

Nwakanma D, Etuk S, Bello S, Oriero E, Meremikwu M, Okebe J, Alaribe AA, Oduwole OA, Ejezie GC, Odey FA, et al (2011). Congenital Malaria in Calabar, Nigeria: the Molecular Perspective. The American Journal of Tropical Medicine and Hygiene, 84(3), 386-389.
Meremikwu M, Udoh E, Nwagbara B, Effa E, Oringanje C, Edet B, Nwagbara E, Bello S, Eke F (2011). Priority setting for systematic review of health care interventions in Nigeria. Health Policy, 99(3), 244-249.
Bello S, Ndifon WO, Ikpeme B, Fatiregun A, Oyo-Ita A (2011). Social determinants of alcohol use among drivers in Calabar. Nigerian Medical Journal, 52(4), 244-244.

2010

Bello S, Fatiregun A, Oyo-Ita A, Ikpeme B (2010). Dose-response relationship between alcohol use and blood pressure among drivers of commercial vehicles in Calabar, Southern Nigeria. Journal of Public Health in Africa, 1(1).
Ikpeme I, Ngim N, Udosen A, Onuba O, Enembe O, Bello S (2010). External jig-aided intramedullary interlocking nailing of diaphyseal fractures: experience from a tropical developing centre. International Orthopaedics, 35(1), 107-111.

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