| Publication |
| Author(s) | Perquin, C. |
| Title | Chronic Pain in Children and Adolescents: Observational Studies. |
| Source | University Press TU Eindhoven, 2002, Netherlands |
| URL | http://repub.eur.nl/res/pub/31977/021002_Perquin,%20Christiana%20Wilhelmina.pdf |
| Investigation |
| Public | 12-18 aged, in chronic pain. Rotterdam, Netherlands, followed 2 years, 1996-99 |
| Last assesment | 1999 |
| | T1: 1976; T2:1998; T3:1999 |
| Survey name | Not available |
| Sample | Non-probability purposive sample |
| | Adolescents with chronic pain selected from: 1) a representative community sample of 0-18 aged in the Rotterdam area (N=6636) and 2) a random sample from records of 11 general practitioners in the area (N=1456). Selection based on response to question about pain in health questionnaire: 'Did you experience pain in the previous 3 months?. If the response was 'yes' and subjects indicated that the pain lasted longer than 3 months, they were approached for participation in a 2-year follow-up survey.
Additional questionnaires were send 6 month later to 12-18 aged who had given consent for follow-up (N=475) |
| Respondents N = | 5336 |
| Non Response | 8% |
| Assesment | Multiple methods |
| | Mailed questionnaire and diary. Subjects and their parents were sent a pain booklet and additional questionnaires. Adolescents were instructed to keep the pain diary to their own. |
| Happiness measure(s) used |