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Table 1 Methadone treatment case-register data.

From: Estimating incidence trends in regular heroin use in 26 regions of Switzerland using methadone treatment data

 

Treatment years included

Number of patients (mean)

Age (mean)

Age at first regular heroin use (mean)

Proportion with known onset (mean)

Zurich

1998–2006

3,701

35.4

21.5

76%

Bern

1999–2005

2,650

34.8

20.9

50%

Genève

1999–2006

1,581

37.3

20.1

16%

Vaud

2001–2006

1,684

36.0

20.8

36%

Ticino

1998–2006

987

35.5

20.8

90%

St. Gallen

2001–2007

910

35.2

22.9

31%

Neuchâtel

2000–2006

689

36.1

21.1

32%

Fribourg

1999–2005

496

33.4

20.2

51%

Graubünden

1998–2006

267

34.3

19.7

6%

Schaffhausen

2000–2006

140

33.9

19.2

28%

Zug

2006

79

36.2

20.8

72%

  1. Methadone treatment case-registers data from 11 cantons of Switzerland, 1998–2008.