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Table 2 Distribution of opioid type at index dispensing in the total study population and among one-year long-term users in previous and new opioid users

From: Postoperative opioid use in Norway—a population-based observational study on patterns of long-term use

All opioid users

 

Previous opioid users

N = 185 968

New opioid users

N = 507 527

Total

N = 693 495

Opioid type, n (%)

Codeine

101 649 (54.7)

302 411 (59.6)

404 060 (58.3)

Tramadol

71 843 (38.6)

195 962 (38.6)

267 805 (38.6)

Oxycodone

11 190 (6.0)

14 828 (2.9)

26 018 (3.8)

Morphine

741 (0.4)

300 (0.1)

1041 (0.2)

Other

6094 (3.3)

2125 (0.4)

8219 (1.2)

1yrLT users

 

N = 24 382

N = 1939

N = 26 321

Opioid type, n (%)

Codeine

7430 (30.5)

493 (25.4)

7923 (30.1)

Tramadol

10 893 (44.7)

1107 (57.1)

12 000 (45.6)

Oxycodone

3716 (15.2)

314 (16.2)

4030 (15.3)

Morphine

488 (2.0)

19 (1.0)

507 (1.9)

Other

3534 (14.5)

124 (6.4)

3658 (13.9)

  1. Note An individual can be counted in multiple groups due to the possibility of multiple dispensings on index day i.e. the sum can exceed 100%