Bacteriology of urinary tract infection among patients with acquired immunodeficiency syndrome in Jos, Nigeria

No Abstract. Nigerian Journal of Medicine Vol. 14(4) October-December 2005: 422-42

Nosocomial and community acquired urinary tract infections at a teaching hospital in north central Nigeria: Findings from a study of 12,458 samples

No Abstract. Nigerian Journal of Medicine Vol. 15(3) July-September 2006: 230-23

Isolation of Proteus mirabilis from Clinical Urogenital Specimens: A Study of the Antibiotic Susceptibility Patterns of 392 Consecutively Isolated Strains in Jos, Nigeria.

This retrospective study was designed to ascertain the epidemiological sources and antibiotic susceptibility patterns of Proteus mirabilis strains recovered from urogenital specimens in Jos University Teaching Hospital; (JUTH) over a five year period (Janurary 2000 – December 2004). Information on epidemiological and clinical sources of P. mirabilis strains, their antibiogram profiles and the demographic data of infected subjects were obtained from the Microbiology and Records Departments. Results were analyzed by Epi Info 2002 statistical software, P value

Knowledge, Attitude and Practice of Confidentiality of Patients' Health Records among Health Care Professional at Federal Medical Centre, Bida

No Abstrac

Are Sample Sizes Clear and Justified in RCTs Published in Dental Journals?

Sample size calculations are advocated by the CONSORT group to justify sample sizes in randomized controlled trials (RCTs). The aim of this study was primarily to evaluate the reporting of sample size calculations, to establish the accuracy of these calculations in dental RCTs and to explore potential predictors associated with adequate reporting. Electronic searching was undertaken in eight leading specific and general dental journals. Replication of sample size calculations was undertaken where possible. Assumed variances or odds for control and intervention groups were also compared against those observed. The relationship between parameters including journal type, number of authors, trial design, involvement of methodologist, single-/multi-center study and region and year of publication, and the accuracy of sample size reporting was assessed using univariable and multivariable logistic regression. Of 413 RCTs identified, sufficient information to allow replication of sample size calculations was provided in only 121 studies (29.3%). Recalculations demonstrated an overall median overestimation of sample size of 15.2% after provisions for losses to follow-up. There was evidence that journal, methodologist involvement (OR = 1.97, CI: 1.10, 3.53), multi-center settings (OR = 1.86, CI: 1.01, 3.43) and time since publication (OR = 1.24, CI: 1.12, 1.38) were significant predictors of adequate description of sample size assumptions. Among journals JCP had the highest odds of adequately reporting sufficient data to permit sample size recalculation, followed by AJODO and JDR, with 61% (OR = 0.39, CI: 0.19, 0.80) and 66% (OR = 0.34, CI: 0.15, 0.75) lower odds, respectively. Both assumed variances and odds were found to underestimate the observed values. Presentation of sample size calculations in the dental literature is suboptimal; incorrect assumptions may have a bearing on the power of RCTs