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Table 2 Before/during OMT changes in disease incidents and inpatient and outpatient days. Number of somatic disease incidents* and inpatient and outpatient days* per 100 patient years before and during opioid maintenance treatment (OMT) in 35 patients.

From: Somatic health among heroin addicts before and during opioid maintenance treatment: a retrospective cohort study

 

Before OMT

During OMT

Reduction %

Increase %

P-value**

 

Incidents/treatment days per 100 patient ears

Incidents/treatment days per 100 patient years

   

Substance-related incidents

     

Overdoses (non-fatal)

17.7

9.9

44

 

0.127

Injection-related incidents, total***

40.6

11.8

70

 

<0.001

Acute thromboembolic incidents

4.6

0.0

   

Acute hepatitis

1.7

0.0

   

Acute local infection

32.6

10.9

   

Acute/sub-acute general infection

1.7

1.0

   

Other substance-related incidents

21.7

8.9

59

 

0.087

Total

80.0

30.6

62

 

<0.001

Non-substance-related incidents

     

Infections

10.3

8.9

14

 

0.849

Injuries

20.6

19.7

4

 

0.832

Other incidents

12.6

20.7

 

64

0.375

Total

43.5

49.3

 

13

0.741

All incidents

123.5

79.9

35

 

0.004

Treatment days

     

Inpatient days

257.0

61.0

76

 

0.003

Outpatient days

59.0

32.0

45

 

0.060

  1. *Definition of disease incident and treatment days, see text
  2. **Wilcoxon signed rank test
  3. ***Overdoses not included, subcategories of incidents in italic