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Table 2 Quality assessment scale for 32 studies

From: Prognostic significance of elevated pretreatment systemic inflammatory markers for patients with prostate cancer: a meta-analysis

Study

Selection

Comparability

Outcome

Total scores

Representativeness of the exposed cohort

Selection of the non-exposed cohort

Assessment of exposure

Outcome not present at start of study

Comparability of cohorts on the basis

Assessment of outcome

Follow-up long enough for outcome

Adequacy of follow-up

Design

Analysis

Yasui

+

+

+

 

+

 

+

+

+

7

Fan

+

+

+

+

+

+

+

+

+

9

Conteduca

+

+

+

+

+

+

+

+

+

9

Vidal

+

+

+

 

+

 

+

+

+

7

Sun

+

+

+

 

+

+

+

+

+

8

Uemura

+

+

+

 

+

 

+

 

+

7

Mehra

+

+

+

+

+

+

+

+

+

9

Boegemann

+

+

+

 

+

+

+

+

+

8

Pei

+

+

+

 

+

+

+

+

+

8

Buttigliero

+

+

+

 

+

 

+

+

+

7

Wang

+

+

+

+

+

 

+

+

+

7

Jang

+

+

+

 

+

+

+

+

+

8

Lolli

+

+

+

 

+

+

+

+

+

8

Shigeta

+

+

+

 

+

 

+

+

+

7

Lee

+

+

+

 

+

+

+

+

+

8

Wang

+

+

+

 

+

+

+

+

+

8

Langsenlehner

+

+

+

 

+

+

+

+

+

8

Langsenlehner

+

+

+

 

+

+

+

+

+

8

Zhang

+

+

+

 

+

 

+

+

+

7

Bahig

+

+

+

 

+

+

+

+

+

8

Lorente

+

+

+

 

+

+

+

+

+

9

Yao

+

+

+

 

+

+

+

+

+

8

Li

+

+

+

 

+

 

+

+

+

7

McLachlan

+

+

+

 

+

 

+

+

+

7

Sharma

+

+

+

 

+

 

+

+

+

7

Templeton

+

+

+

 

+

 

+

+

+

7

Sonpavde

+

+

+

 

+

+

+

 

+

7

Nuhn

+

+

+

 

+

+

+

+

+

8

Poyet

+

+

+

 

+

 

+

+

+

7

Linton

+

+

+

+

+

+

+

+

+

9

Shafique

+

+

+

+

+

+

+

+

+

9

Yamada

+

+

+

 

+

+

+

+

+

8

  1. A positive result on any one of them was counted as one point