Table GPS-1 part (ii). Lifetime prevalence of drug use among all adults (15 to 64 years old) in nationwide surveys among the general population. Survey methods

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Table GPS-1 part (ii). Lifetime prevalence of drug use among all adults (15 to 64 years old) in nationwide surveys among the general population. Survey methods
Country- geographical area	Ref.	Year	Data collection method	Original age range	Original sample size	Age range all adults	Sample size all adults	Age range young adults	Sample size young adults
Belgium
Vlanderen (Brussels excluded)	1	1994	Phone	18-65	2259	18-65	2259	18-34
French Community	2	1996-97	Phone	18-49	976	18-49	976	18-34	508
French Community	3	1998-99	Phone	18-49	1008	18-49	1008	18-34	461
French Community	4	2000	Phone	18-49	694	18-49	694	18-34	282
National	5	2001	Interview	15-64	9470	15-64	7347	15-34	2758
Czech Republic
National	1	2002	Interview	18-64	2526	18-64	2526	18-34	1002
Denmark
National	1	1990	Phone	>=16	2000	>=16	2000	16-44
National	2	1994	Interview	16-44	2521				2521
National	3	2000	Interview	16+	14278	16-64	11825	16-34	4141
Germany
East Germany	1	1990	Mail	12-39				12-39
West Germany	2	1990	Mail	12-39	19207			12-39	19207
Old and New Länder	3	1995	Mail	18-59	7833	18-59	7833	18-34	3157
Old and New Länder	4	1997	Mail	18-59	8019	18-59	8019	18-34	3058
National	5	2000	Mail	18-59	8139	18-59	8139	18-34	3107
National	6	2003	Mail	18-59	8061	18-59	8061	18-34	3775
Estonia
National	1	1998	Mail	18-70	2317	18-64	2317	18-34	804
National	2	2003	Mail	15-69	1891				646
Greece
Athens	1	1993	Interview	12-64	2103	12-64	2103	18-35
National (except Aegean and Ionian Islands)	2	1998	Interview	12-64	3752	15-64	3398	15-34	2014
National (except Aegean and Ionian Islands)	3	2004	Interview	12-64	4781	15-64	4351	15-34	2620
Spain
National	1	1995	Interview	15+	9984	15-64	8888	15-34	5813
National	2	1997	Interview	15-65	12515	15-65	12515	15-34	6898
National	3	1999	Interview	15-65	12488	15-64	12234	15-34	6293
National	4	2001	Interview	15-64	14113	15-64	14113	15-34	6915
France
National	1	1992	Phone	18-75	2099	15-64	2099	15-34	373
Metropolitan France	2	1995	Phone	18-75	1993	18-75	1787		756
National	3	1999	Phone	15-75	2002	18-69	1742	18-34	753
National	4	2000	Phone	12-75	13685	15-64	11317	15-34	4749
Metropolitan France	5	2002	Phone	15-75	2009	15-64	1744	15-34	724
Ireland
National	1	1998	Interview	18+	1000	18-64	826	18-34	318
National	2	1998	Mail	18+	6539	18-64		18-34
National	3	2000	Interview	18+	1000	18-64	907	18-34	404
National	4	2002-03	Interview	15-64	4925	15-64	4925	15-34
Italy
National	1	2001	Mail	15-44	6032	15-44	6032	15-34	3698
National	2	2003	Mail	15-54	34489	15-54	11869	15-34	5231
Cyprus
National	1	2003	Interview	15-65	90.9	15-65	1000	15-34	580
Latvia
National	1	2003	Interview	15-64	4534	15-64		15-34
Luxembourg
National	1	1998	Interview	12-64	667	15-64		15-34
Hungary
National	1	2001	Interview	18-65	2359	18-65	2359	18-34	790
National	2	2003	Interview	18-54	3675	18-54		18-34	2319
Malta
National	1	2001	Interview	18-64		18-64
Netherlands
National	1	1997-98	Interview	12+	22000	15-64	17590	15-34	9090
National	2	2001	Multimethod	12+	17655	15-64	14045	15-34	6687
Poland
National	1	2002	Interview	16+	3148	16-64		16-34
Portugal
National	1	2001	Interview	15-64	14186	15-64	14186	15-34	6406
Slovakia
National	1	2002	Interview	18+		18-64	1405	18-34
Finland
National	1	1992	Mail	18-74	3457	18-74	3457	18-34
National	2	1996	Mail	16-74	3009	16-74	3009	16-34
National	3	1998	Mail	15-69	2568	15-69	2568	15-34	974
National	4	2000	Interview	15-69	1789	15-64	1677	15-34	615
National	5	2002	Mail	15-69	2541	15-64	2377	15-34	1240
Sweden
National	1	1994	Interview	16-75	933	16-64	806	16-34	310
National	2	1996	Interview	16-75	1351	16-64	1136	16-34	476
National	3	1998	Interview	16-75	1557	16-64	1359	16-34	542
National	4	2000	Interview	16-75	2027	16-64	1750	16-34	575
National	5	2004	Mail	18-84	12166	18-64	9514	18-34	2985
United Kingdom
England and Wales	1	1994	Interview	16-59	9645	16-59	9645	16-34	4329
England and Wales	2	1996	Interview	16-59	10935	16-59	10935	16-34	4720
England and Wales	3	1998	Interview	16-59	9984	16-59	9984	16-34	4112
England and Wales	4	2000	Interview	16-59	13018	16-59	13018	16-34	4910
England and Wales	5	2001-02	Interview	16-59	20165	16-59	20165	16-34	9006
Northern Ireland	6	2002-03	Interview	15-64	3517	15-64	3517	15-34
England and Wales	7	2002-03	Interview	16-59	23586	16-59	23586	16-34	8520
England and Wales	8	2003-04	Interview	16-59	24422	16-59	24422	16-34	8590
Norway
National	1	1999	Interview	15+	2170	15-64	1803	15-34	794
Notes: This table aims to present national surveys. Exceptionally some relevant regional surveys are presented. Some city surveys reported by countries were not included as they tend to produce higher prevalence estimates, which are not comparable with estimates for whole countries (or big regions with urban and rural areas). Athens was included as reference point for 1993 survey. 'Data collection' means 'data collection method used in the survey': 'interview' (face to face interview, which may include self-completed sections for the more sensitive questions, also it may include CAPI -computer assisted interviews), 'phone' (telephone interview), 'mail' (mailed questionnaire), 'Multimethod' (Multi-Method - simultaneous use of interview, mail or internet in the same survey). 'Survey sample' refers to number of actual respondents to survey (Net sample). In some cases, national surveys cover originally a broader age range ('original age range') than that presented here for the standard groups 'All adults'(15-64) and 'Young adults' (15-34). Sample sizes are presented respectively for the 'original age range', the 'all adults' and 'young adults' groups. In surveys with small sample sizes results should be interpreted with caution. Countries were asked to report results using, as far as possible, EMCDDA standard age groups (all adults: 15-64, young adults: 15-34). In countries where age ranges are more restrictive prevalence estimates may tend to be slightly higher. Some countries have recalculated their prevalence figures using the EMCDDA standard age groups. For methods and definitions on population surveys in general, see [Methods and definitions - Prevalence and patterns of drug use in the general population]. Sources: See [Table GPS-0] For more details on methodological features for each survey, see [Table GPS-14]