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Table 1 Summary characteristics of the 14 studies included in the systematic review

From: Prevalence of attention deficit hyperactivity disorder among children and adolescents in Spain: a systematic review and meta-analysis of epidemiological studies

Characteristic

Number (%)

Year of publication

 

  1980-1989

2 (14.3)

  1990-1999

7 (50.0)

  2000-2011

5 (35.7)

Journal title (abbreviated)

 

  Rev Neurol

3 (21.4)

  Acta Psychiatr Scand

1 (7.1)

  Soc Psychiatry Psychiatr Epidemiol

1 (7.1)

  Rev Psiquiat y Psicol Med

1 (7.1)

  An Psiquiatr

1 (7.1)

  Actas Luso Esp Neurol Psiquiatr Cienc Afines

1 (7.1)

  Acta Pediatr Esp

1 (7.1)

  Rev Pediatr Aten Primaria

1 (7.1)

  Arch Pediatr

1 (7.1)

  Pediatr Catalana

1 (7.1)

  None/unpublished (e.g. PhD thesis)

3 (21.4)

Peer reviewed journal

 

  Yes

10 (71.4)

  No

4 (28.6)

Author affiliation

 

  University

7 (50.0)

  Primary care

3 (21.4)

  Hospital

2 (14.3)

  Other/non explicit

2 (14.3)

Population age

 

  Children and adolescents (under 17 years)

6 (42.9)

  Children (under 12 years)

8 (57.1)

Origin of sample

 

  School

11 (78.6)

  General population

3 (21.4)

Reference to a diagnostic criterion

 

  DSM-III-R

6 (42.9)

  DSM-IV

4 (28.6)

  Other/non explicit

4 (28.6)

Impairment criterion

 

  Yes

7 (50.0)

  No

7 (50.0)

Number of stages of evaluation

 

  One

7 (50.0)

  Two

7 (50.0)

Inclusion of clinical interview

 

  Yes

8 (57.1)

  No

6 (42.9)

Source of information

 

  Parents and teachers

9 (64.3)

  Parents and subjects

2 (14.3)

  Teachers

2 (14.3)

  Parents, teachers and subjects

1 (7.1)