Background
Methods
Results
Response to the survey
Country | Purpose of database | Database | Website | Response | Information from websites and literature |
---|---|---|---|---|---|
Denmark | PM | National Psychiatric Central Register | Yes | No | |
Denmark | PM/Admin | Odense Pharmacoepidemiological Database | Yes | No | |
Denmark | PM/Admin | Aarhus University Prescription Database | Yes | No | |
Denmark | RC | The Danish National Birth Cohort (DNBC) | Yes | No | |
Finland | PM/Admin | Prescription register | No | Yes | |
Finland | RC | The Finnish Northern Finland Birth Cohort (NFBC) 1986 study | No | Yes | |
Germany | RC | The German Health Interview and Examination Survey for Children and Adolescents (KiGGS) | Yes | No | |
Germany | PM | The German Population Based Long-Term Follow-up of ADHD | No | Yes | |
Italy | PM | Pedianet | No | Yes | |
Italy | PM | Sistema Informativo Sanitario Regionale Database-FVG region | No | No | |
Italy | PM | Health Search Database Thales—CSD LPD (HSD) | Yes | No | |
Italy | PM | Tuscany Regional database | No | No | |
Italy | PM | Lombardy Regional ADHD database | Yes | No | |
Italy | PM | ARNO Observatory | No | No | |
Italy | PM | The National ADHD Registry | Yes | No | |
Netherlands | PM | Integrated Primary Care Information Database (IPCI) | No | Yes | |
Netherlands | PM | PHARMO-Record-Linkage-System | Yes | No | |
Netherlands | PM | InterAction database | Yes | No | |
Netherlands | RC | The Dutch KOALA Birth Cohort Study | Yes | No | |
Netherlands | RC | The Dutch TRAILS study | No | No | |
Netherlands | RC | The Dutch Generation R study | Yes | No | |
Norway | PM | The Norwegian Prescription Database | Yes | No | |
Portugal | RC | Centro de Estudos e Avaliação em Saúde (Centre for Health Studies and Evaluation) (CEFAR) | No | No | |
Sweden | PM | Swedish Medical Birth Register | Yes | No | |
Sweden | PM | Swedish National Health Data Registers | Yes | No | |
Sweden | RC | The Swedish All Babies in Southeast Sweden | No | No | |
Spain | PM | Base de datos para la Investigacion Farmacoepidemiologica en Atencion Primaria (BIFAP) | No | No | |
UK | PM | General Practice Research Database (GPRD) (now part of Clinical Practice Research Datalink) | Yes | No | |
UK | PM | The Health Improvement Network Data (THIN) | Yes | No | |
UK | PMS | Prescription Event Monitoring (PEM) | Yes | No | |
UK | Admin | Prescription Pricing Authority (PPA) | No | No | |
UK | PM | QResearch | Yes | No | |
UK | PM | Scottish Programme for Improving Clinical Effectiveness in Primary Care (SPICE) formerly known as GPASS (General Practice Administration System for Scotland) | No | No | |
UK | PM | Medicines Monitoring Unit (MEMO) | No | No | |
UK | RC | The Avon Longitudinal Study of Parents and Children (ALSPAC) | Yes | No | |
UK | RC | The 1970 British Cohort Study | No | Yes | |
UK | RC | The Millennium Cohort Study | No | Yes | |
UK | RC | The 2004 British Child and Adolescent Mental Health Survey | No | No | |
UK | RC | The Scottish SEATON Study | Yes | No | |
European | RC | The ADHD Observational Research in Europe | No | No | |
European | RC | The International Muti-Center ADHD Genetics (IMAGE) Project | No | No | |
UK, France, Germany | PM | IMS Disease Analyzer (IMS DA) | Yes | No |
Name of database | Aarhus | DNBC | National Psychiatric Central Register | KiGGS | HSD | Italian ADHD Register | Lombardy Region ADHD Database |
---|---|---|---|---|---|---|---|
Country | Denmark | Denmark | Denmark | Germany | Italy | Italy | Italy |
Type of database | Prescription Information Databasesa
| Longitudinal/Patient Record Database | Longitudinal/Patient Record Databasea
| Cross-sectional, Observational Data Survey | Longitudinal/Patient Record Database | ADHD specific patient cohort | ADHD specific patient cohort |
Number of Investigators | N/A | N/A | N/A | 5 | 700 | 84 | 18 |
Starting year | 1994 | 1996 | 1969 | 2003 | 1996 | 2007 | 2007 |
End year | Ongoing | Ongoing | Ongoing | 2006 | Ongoing | Ongoing | Ongoing |
Estimated no. | |||||||
Male (no. Of ADHD) | 10,000 (50) | 48,000 (N/A) | 633,385 (N/A) | 8,985 (710) | 760,000 (114) | 2,000 | 201 |
Female (no. of ADHD) | 10,000 (0) | 46,000 (N/A) | 8,656 (156) | 850,000 (20) | 244 | 28 | |
Prescriptions | |||||||
Medication | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Medication Code | ATC | ATC | ATC | ATC | ATC | ATC | Only atomoxetine and methylphenidate |
Indication | No | No | No | Yes | Yes | Yes | Yes |
Dosage | Yes | Yes | No | Yes | Yes | Yes | Yes |
Duration | Yes | Yes | No | Yes | Yes | Yes | Yes |
Outcomes/confounders | |||||||
Weight | No | Yes | No | Yes | Yes | Yes | Yes |
Height | No | Yes | No | Yes | Yes | Yes | Yes |
Blood pressure | No | No | No | Yes | Yes | Yes | Yes |
Heart rate | No | No | No | Yes | No | Yes | Yes |
Medical diagnosis | Yesa
| Yes | Yes | Yes | Yes | Yes | Yes |
Symptoms/clinical events | Yesa
| Yes | Yes | Yes | Yes | Yes | Yes |
Diagnoses/clinical events code | ICD-10 | ICD-10 | ICD-10, ICD-8 | Parent reported clinician based information on ADHD | ICD-9CM | MedDRA | List of co-morbidities |
Validation of ADHD diagnosis via | N/A | Comparison with SDQ | ICD-10 | Comparison with SDQ | ICD9-CM and further validation required | DSM-IV | DSM-IV |
Medical examinations | Yes | No | Yes | Yes | Yes | Yes | Yes |
Ethnicity | Yes | No | Yes | Yes | No | No | No |
Genetic information | No | Yes | Yes | No | No | No | No |
Data access | |||||||
Via academic collaboration | N/A | Yes | Yes | Yes | Yes | No | Yes |
By paying a fee | N/A | Yes | No | Yes | Yes | Yes | Yes |
Name of database | Generation R Study | KOALA | Swedish National Health Data Registers | ALSPAC | GPRD | THIN | QResearch | IMS DA |
---|---|---|---|---|---|---|---|---|
Country | Netherlands | Netherlands | Sweden | UK | UK | UK | UK | UK, France and Germany |
Type of database | Longitudinal/Patient Record Database | Longitudinal/Patient Record Database | Longitudinal/Patient Record Databasea
| Longitudinal/Patient Record Database | Longitudinal/Patient Record Database | Longitudinal/Patient Record Database | Longitudinal/Patient Record Database | Longitudinal/Patient Record Database |
Number of Investigators | 5 | 3 | N/A | 1 | 600 | 495 | 600 | >100 |
Starting year | 2002 | 2000 | 2005 | 1990 | 1987 | 2003 | 1990 | 1991 |
End year | Ongoing | Ongoing | Ongoing | Ongoing | Ongoing | Ongoing | Ongoing | Ongoing |
Estimated no. | ||||||||
Male (no. Of ADHD) | 3,000 (N/A) | 1,400 (N/A) | 32,000 (N/A) | 5,000 (N/A) | 2,000,000 (12,000) | 1,713,823 (N/A) | 200,000 (N/A) | 2,500,000 (N/Ac) |
Female (no. of ADHD) | 3,000 (N/A) | 1,400 (N/A) | 18,000 (N/A) | 5,000 (N/A) | 2,000,000 (8,000) | 1,750,216 (N/A) | 200,000 (N/A) | 2,500,000 (N/Ac) |
Prescriptions | ||||||||
Medication | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Medication Code | N/A | Not yet determinedb
| ATC | ATC | Multilex | ATC, Multilex | EMIS drug database | ATC, Read |
Indication | N/A | No | No | Yes | Yes | No | No | Yes |
Dosage | N/A | Yes | Yes | No | Yes | Yes | Yes | Yes |
Duration | N/A | Yes | No | Yes | Yes | Yes | Yes | Yes |
Outcomes/confounders | ||||||||
Weight | Yesd
| Yes | No | Yes | Yes | Yes | No | Yes |
Height | Yesd
| Yes | No | Yes | Yes | Yes | No | Yes |
Blood pressure | Yesd
| Yes | No | Yes | Yes | Yes | No | Yes |
Heart rate | Yesd
| Yes | No | Yes | Yes | Yes | No | Yes |
Medical diagnosis | Yesd
| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Symptoms/clinical events | Yesd
| Yes | No | Yes | Yes | Yes | No | Yes |
Diagnoses/clinical events code | N/A | Not yet determinedb
| ICD-10 | ICD-10, ALSPAC generated | Read | Read | Read | ICD-10, Read |
Validation of ADHD diagnosis via | CBCL & DSM-IVe
| Not yet determinedb
| Uncertain | Traits and DAWBA questionnaire | GP questionnaires | GP questionnaires | None | None |
Medical examinations | Yesd
| No | No | No | Yes | Yes | No | Yes |
Ethnicity | Yesd
| Yes | Yes | Yes | Yes | No | Yes | Yes |
Genetic information | Yesd
| No | No | Yes | No | No | No | No |
Data access | ||||||||
Via academic collaboration | Yesd
| Yes | Yes | Yes | No | No | No | Yes |
By paying a fee | Nod
| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Type of database
Drug exposure
Clinical outcomes
Other variables
Previous applications of databases in the field of research in paediatrics and/or ADHD
Data access
Assessment of non-responding databases
Name of database | Prescription register | The Finish Northern Finland Birth Cohort (NFBC) 1986 study | The German population based long-term follow-up of ADHD | Pedianet | Integrated primary care information database (IPCI) | The 1970 British cohort study | The millennium cohort study |
---|---|---|---|---|---|---|---|
Country | Finland | Finland | Germany | Italy | Netherlands | UK | UK |
Type of database | Prescription Information Database | Longitudinal 1-year birth cohort | Longitudinal/Patient Record Database | Longitudinal/Patient Record Database | Longitudinal/Patient Record Database | Longitudinal study | Longitudinal study |
Number of investigators | N/A | N/A | N/A | 300 paediatricians | 150 GPs | N/A | N/A |
Starting year | 1994 | 1985 | 2010 | 1998 | 1992 | 1970 | 2000 |
End year | Ongoing | 1986 | Ongoing | Ongoing | Ongoing | Ongoing | Ongoing |
Estimated no. of individuals | 480,000 (0–18 years) | 9,400 | 30,000 | 106,554 (0–14 years)a
| >1,000,000 (161,108 of 0–18 years)b
| 15,500 | 18,800 |
Prescriptions | |||||||
Medication code | ATC | N/A | N/A | ATC | ATC | N/A | N/A |
Indication of prescription | Limited | N/A | N/A | No | Yes | N/A | N/A |
Dosage of prescription | Limited | N/A | N/A | Yes | Yes | N/A | N/A |
Duration of prescription | No | N/A | N/A | Yes | Yes | N/A | N/A |
Outcomes/confounders | |||||||
Weight | No | N/A | N/A | Yes | Yes | Yes | Yes |
Height | No | N/A | N/A | Yes | Yes | Yes | Yes |
Blood pressure | No | Yes | N/A | N/A | Yes | N/A | N/A |
Heart rate | No | Yes | N/A | N/A | N/A | N/A | N/A |
Medical diagnosis | No | Limited | N/A | Yes | Yes | N/A | N/A |
Symptoms/clinical events | No | Limited | N/A | Yes | Yes | Limited | Limited |
Diagnoses/clinical events code | N/A | N/A | N/A | N/A | ICPC | N/A | N/A |
ADHD diagnosis tool | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Medical examinations | No | Limited | N/A | Yes | Yes | Limited | Limited |
Ethnicity | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Genetic information | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Data access | |||||||
Via academic collaboration | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
By paying a fee | N/A | N/A | N/A | N/A | N/A | N/A | N/A |