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Table 6 IRs, IRRs, and 95 % confidence intervals of hepatic events irrespective of determination of alternate etiology, follow-up through 15 days following treatment discontinuation, matched duloxetine and comparator cohorts, ORD, 01 August 2004 to 31 December 2010

From: Hepatic outcomes among adults taking duloxetine: a retrospective cohort study in a US health care claims database

Outcome

Cohort

Person-Years

No. Cases

IR

95 % CI

IRR

95 % CI

Hepatic-related death

Duloxetine

7633.5

0

0.0

(0.0, 0.4)

NA

NA

Venlafaxine

8838.7

0

0.0

(0.0, 0.3)

  

Duloxetine

10,411.9

0

0.0

(0.0, 0.3)

NA

NA

SSRI

9835.6

0

0.0

(0.0, 0.3)

  
 

Duloxetine

8116.7

0

0.0

(0.0, 0.4)

NA

NA

 

Untreated

5966.1

0

0.0

(0.0, 0.5)

  

Hepatic failure

Duloxetine

7631.7

0

0.0

(0.0, 0.4)

NA

NA

Venlafaxine

8836.6

0

0.0

(0.0, 0.3)

  

Duloxetine

10,410.6

0

0.0

(0.0, 0.3)

NA

NA

SSRI

9833.9

0

0.0

(0.0, 0.3)

  
 

Duloxetine

8116.2

0

0.0

(0.0, 0.4)

NA

NA

 

Untreated

5965.8

0

0.0

(0.0, 0.5)

  

Other clinically significant hepatic injury

Duloxetine

7548.5

11

1.5

(0.7, 2.6)

3.2

(0.9, 13.7)

Venlafaxine

8745.2

4

0.5

(0.1, 1.2)

  

Duloxetine

10,300.9

14

1.4

(0.7, 2.3)

1.3

(0.5, 3.3)

SSRI

9753.2

10

1.0

(0.5,1.9)

  

Duloxetine

8035.8

11

1.4

(0.7, 2.4)

1.0

(0.4, 2.9)

 

Untreated

5931.9

8

1.3

(0.6, 2.7)

  

Hepatic-related death and liver failure combined

Duloxetine

7631.7

0

0.0

(0.0,0.4)

NA

NA

Venlafaxine

8836.6

0

0.0

(0.0, 0.3)

  

Duloxetine

10,410.6

0

0.0

(0.0, 0.3)

NA

NA

SSRI

9833.8

0

0.0

(0.0, 0.3)

  

Duloxetine

8116.2

0

0.0

(0.0, 0.4)NA

NA

 

Untreated

5965.6

0

0.0

(0.0, 0.5)

  

All clinically significant hepatic categories combined

Duloxetine

7548.5

11

1.5

(0.7, 2.6)

3.2

(0.9, 13.7)

Venlafaxine

8745.2

4

0.5

(0.1, 1.2)

  

Duloxetine

10,300.9

14

1.4

(0.7, 2.3)

1.3

(0.5, 3.3)

SSRI

9753.2

10

1.0

(0.5, 1.9)

  

Duloxetine

8035.8

11

1.4

(0.7, 2.4)

1.0

(0.4, 2.9)

 

Untreated

5931.9

8

1.3

(0.6, 2.7)

  

Non-serious hepatic enzyme elevation

Duloxetine

7548.5

1

0.1

(0.0, 0.7)

undef.

(0.0,inf.)

Venlafaxine

8745.2

0

0.0

(0.0, 0.3)

  

Duloxetine

10,300.9

1

0.1

(0.0, 0.5)

0.5

(0.0,9.1)

SSRI

9753.0

2

0.2

(0.0, 0.7)

  

Duloxetine

8035.8

1

0.1

(0.0, 0.7)

0.7

(0.0,57.9)

 

Untreated

5932.0

1

0.2

(0.0, 0.9)

  
  1. ORD Optum Research Database, IR incidence rate, representing number of events per 1000 person-years, CI confidence interval, IRR: rate ratio, NA not available, undef. undefined, inf. infinity