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Table 2 Meta-regression model parameter estimates (SE) for validity measures of PPV, sensitivity and specificity

From: The validity of electronic health data for measuring smoking status: a systematic review and meta-analysis

Variable

Validity measure

PPV

Sensitivity

Specificity

Parameter estimate (SE)

P-value

Parameter estimate (SE)

P-value

Parameter estimate (SE)

P-value

Data source

      

 EMR

−0.076 (0.073)

0.304

0.251

(0.076)

0.001

−0.057

(0.054)

0.297

 Administrative

Ref

 

Ref

 

Ref

 

Predictive model

      

 Yes

−0.017 (0.076)

0.826

0.195

(0.069)

0.006

−0.094

(0.052)

0.078

 No

Ref

 

Ref

 

Ref

 

Reference standard

      

 Chart review/clinical data

0.095

(0.072)

0.198

0.086

(0.082)

0.297

−0.025

(0.059)

0.672

 Self-report

Ref

 

Ref

 

Ref

 

Clinical population

      

 Yes

0.108 (0.063)

0.144

−0.096 (0.081)

0.239

− 0.140 (0.058)

0.020

 No

Ref

 

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Ref

 

Study population age

      

 Restricted

0.133(0.067)

0.054

−0.016(0.062)

0.793

0.035(0.045)

0.441

 All ages

Ref

 

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Ref

 

Country of data origin

      

 US

−0.006(0.072)

0.937

− 0.083(0.079)

0.304

0.195(0.059)

0.002

 non-US

Ref

 

Ref

 

Ref

 
  1. Boldface font denotes a statistically significant estimate; EMR electronic medical record, SE standard error, PPV positive predictive value
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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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