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Table 4 Adjusted negative binomial regression model for the impact of statistical reporting and analysis on citation frequency.

From: The relationship between quality of research and citation frequency

Variable

Ratio

Standard error

95% CI Lower Bound

95% CI Upper bound

P-value

Intercept

27.25

1.08

23.24

31.95

 

Journal

     

â–ªAGP

3.11

1.11

2.53

3.82

< 0.001

â–ªAJP

1.77

1.10

1.48

2.11

< 0.001

â–ªNJP

0.06

1.21

0.04

0.08

< 0.001

â–ªReference BJP

1.00

    

Research question

     

â–ªnot stated

0.99

1.10

0.82

1.19

0.888

â–ªstated

1.00

    

Primary outcome

     

â–ªnot stated

0.94

1.10

0.78

1.14

0.554

â–ªstated

1.00

    

Sample size

     

â–ªnot reported

0.98

1.11

0.80

1.20

0.855

â–ªreported

1.00

    

Incomplete description of procedures

     

â–ªyes

0.83

1.10

0.69

1.00

0.048

â–ªno

1.00

    

Inappropriate analysis

     

â–ªyes

1.05

1.12

0.85

1.31

0.640

â–ªno

1.00

    

Incomplete analysis

     

â–ªyes

0.95

1.10

0.78

1.15

0.601

â–ªno

1.00

    

Overuse of tests

     

â–ªyes

1.026

1.10

0.86

1.23

0.778

â–ªno

1.00

    

Dispersion parameter

1.75

1.04

1.62

1.88

 
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BMC Medical Research Methodology

ISSN: 1471-2288

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