General characteristics included study design, first author, year of publication, sample size, interventions and various types of artificial total disc replacements (TDRs).
The following information was abstracted: author, year of publication, sample size, disease, type of impairment and disability scales, distinction between generic or disease-specific and mental or physical HRQL, and the associations with impairment.
After adjusting for journal of publication, sample size and funding source, each point increase in PICOT score was significantly associated with a 2.1% increase in the OQS and a 14.2% increase in the KS.
From each study, we extracted a predetermined set of data, including name of the first author, year of publication, sample characteristics, study settings, follow-up details, number of deaths, effect measures, and confounders.
The selective data are authors' names, year of publication, sample size per arm, regimen used, tumour stage, median or mean age of patients, vaccine formulation, information pertaining to study design and main results of clinical efficacy in each arm.
Extracted data included author names, year of publication, sample source, number of male and female patients, tumor classification system, IHC methodology (antibody source, dilution), and clinical parameters (tumor stage, lymph node metastasis, distant metastasis).
Details of the components covered by these papers, year of publication, samples recruited, populations studied and main findings are presented in table 1.
Conclusion When reported in publications, sample size calculations and statistical methods were often explicitly discrepant with the protocol or not pre-specified.
The remaining models provide additional standardized information about these data (e.g. source publications, sample location, etc)., in combination with contextual information included in each of the main models.
A systematic review that summarizes the results from 20 publications sampling HCWs from various geographical regions showed that pandemic vaccine coverage was variable (9 92%) across HCW populations [ 39].
In studies that carried out the comparisons between normal renal tissue and benign renal tumor tissue, country might be associated with heterogeneity (P < 0.05), but not publication year, sample size, publication year, and sample sizes (P > 0.05).
