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Table 3 Results of the multivariable regression analyses

From: Insufficient uptake of systematic search methods in oncological clinical practice guideline: a systematic review

Independent variable

Reference category

Effect

Odds Ratio (95% CI)

Model 1n = 590

(SR, SRinsDT, SRnoDT vs noSR, noLA)a

Odds Ratio (95% CI)

Model 2n = 305

(SR vs SRinsDT)a

Odds Ratio (95% CI)

Model 2n = 305

(SR vs SRnoDT)a

Scope

Year of validity

2009

2010

1.59 (0.58–4.35)

  

2011

2.04 (0.69–5.88)

  

2012

2.70 (1.23–5.88)

  

2013

1.92 (0.89–4.35)

  

2014

1.45 (0.54–3.85)

  

2015

1.67 (0.56–5.00)

  

Broad

Focused

2.35 (0.97–5.56)

1.04 (0.49–2.20)

3.48 (0.89–13.61)

Producer

Government Agency

Independent expert panel

0.05 (0.03–0.10)

0.10 (0.03–0.31)

0.13 (0.00–0.96)

Professional or specialist society

0.09 (0.04–0.16)

0.08 (0.04–0.15)

0.07 (0.00–0.33)

Other

0.13 (0.04–0.42)

0.01 (0.00–0.05)

0.01 (0.00–0.03)

Continent

International

Asia

0.90 (0.35–2.86)

0.40 (0.11–1.53)

0.85 (0.16–4.53)

Oceania

1.00 (0.34–4.17)

2.24 (0.12–40.82)

6.11 (0.51-∞)

Europe

0.50 (0.23–1.05)

1.15 (0.40–3.29)

2.89 (0.49–17.09)

North America

2.16 (1.16–4.17)

0.50 (0.19–1.29)

17.43 (2.28–133.44)

South America

1.30 (0.23–10)

0.37 (0.02–6.29)

0.44 (0.02-∞)

  1. ORs larger than 1 refer to increased use of systematic search methods in model 1 and increased use of search methods meeting our quality criteria in model 2
  2. aAbbreviations are explained in Table 1