Skip to main content
. 2011 Aug 6;1(1):e000130. doi: 10.1136/bmjopen-2011-000130

Table 1.

Acute/subacute hospital-treated somatic disease incidents: incidence rates and rates of inpatient days and outpatient treatment contacts per 100 patient-years

OMT status
Before During After*
Incidence rates
All acute/subacute incidents 60.5 38.1 113.0
All drug-related incidents 31.9 7.5 75.7
  Overdoses 10.4 3.7 20.8
  Injecting-related, total** 14.2 2.4 34.0
   Deep venous thrombosis/lung embolism 0.6 0.2 1.1
   Acute hepatitis B and C 0.9 0.1 1.1
   Local bacterial infections 8.5 1.5 19.7
   Systemic bacterial infections 3.3 0.5 11.0
   Other 0.9 0.1 1.1
  Other drug-related, total** 7.3 1.4 20.8
   Withdrawal-related 2.7 0.5 4.4
   Impaired general condition 1.4 0.2 7.7
   Neuromuscular 0.5 0.0 1.1
   Other 2.7 0.6 7.7
All non-drug-related incidents 12.4 16.7 21.9
  Infections 3.7 4.7 11.0
  Other 8.7 12.1 11.0
Injuries 16.2 13.9 15.4
Treatment contact rates
Inpatient days per 100 patient-years 150.7 92.4 472.8
  Drug-related 86.9 13.9 331.3
  Non-drug-related 31.7 62.9 69.1
  Injuries 32.1 15.6 72.4
Outpatient contacts per 100 patient-years 56.4 41.4 107.5
  Drug-related 22.9 4.8 49.4
  Non-drug-related 12.1 16.9 26.3
  Injuries 21.4 19.8 31.8

The rates before and during OMT refer to all patients, while the rates after OMT refer exclusively to patients with interrupted OMT. Patient-years at risk: 1000 before, 813 during and 91 after OMT. Number of incidents: 605 before, 310 during and 106 after OMT.

*

After OMT is defined as time out of treatment (one or more consecutive periods) after first admittance to OMT, that is the sum of the time between treatment periods and time after the last treatment period.

**

Subgroups in italic.

OMT, opioid maintenance treatment.