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Table 3 Association between PICOT score and overall reporting quality

From: Association between framing of the research question using the PICOT format and reporting quality of randomized controlled trials

Independent Variable Median Q1-Q3 Multivariable Model Univariate Models
  OQSa   IRR 95% CI p value IRR 95% CI p value
PICOT 9 8 - 10 1.021b 1.012 - 1.029 < 0.0001 1.018 1.006 - 1.029 0.0032
Funding Source         
Othersc 9 8 - 11 1 - - 1 - -
Completely funded by industry 10 9 - 10 1.022 0.999 - 1.046 0.0638 1.058 1.010 - 1.108 0.0177
Journal of Publication         
Othersc 9 7 - 10 1 - - 1 - -
J Clin Endocrinol Metab 9 8 - 11 1.055 0.985 - 1.130 0.1280 1.074 0.986 - 1.171 0.1027
Sample Size 9 8 - 10 1.073d 1.026 - 1.123 0.0020 1.095 1.011 - 1.185 0.0250
  1. Abbreviations: OQS, Overall quality score; Q1, quartile 1; Q3, quartile 3; IRR, incidence rate ratio; 95% CI, 95% confidence interval; GEE, generalized estimating equations; RCTs, randomized controlled trials.
  2. a Maximum possible score = 14
  3. b The value is an expression of the change in the average of the OQS due to one unit increase in PICOT score.
  4. c Reference category
  5. d The sample size variable was log(10) transformed. The value is an expression of the change in the average of the OQS due to one unit increase in sample size in the log scale.