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Table 1 Study participants been confirmed as having hepatitis B virus (HBV) or hepatitis C virus (HCV) infection according to 3 reference standards (RSs) and 3 study periods

From: Validation of coding algorithms for identifying people with viral hepatitis using claims data according to different standard references

Study

All participants

RS1 confirmed

RS2 confirmed

RS3 confirmed

Period (years)

No.

%

No.

%

No.

%

No.

%

HBV

        

4 (2016–2019)

10,000

100.0

146

1.5

247

2.5

537

5.4

8 (2012–2019)

10,000

100.0

212

2.1

336

3.4

650

6.5

12 (2008–2019)

10,000

100.0

297

3.0

394

3.9

729

7.3

HCV

        

4 (2016–2019)

10,000

100.0

165

1.7

224

2.2

407

4.1

8 (2012–2019)

10,000

100.0

336

3.4

375

3.8

498

5.0

12 (2008–2019)

10,000

100.0

498

5.0

393

3.9

525

5.3

  1. RS1: having positive results of laboratory test HBsAg or HBeAg or Anti-HCV
  2. RS2: having RS1 or having prescriptions of anti-HBV or anti-HCV medications
  3. RS3: having RS1 or RS2 or having HBV or HCV textual diagnosis recorded in electrical medical records