An observational study in Patellofemoral Pain Syndrome and Knee Pain, sponsored by Aalborg University. Completed. Open to participants aged 15 Years to 19 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-01-27.
Sponsored by Aalborg University · Observational
The prevalence of adolescent knee pain is 33%, and patellofemoral pain (PFP) is the most common diagnosis with a nontraumatic onset. The 5-year prognosis of adolescent PFP compared with other types of knee pain is unknown.
In 2011, a cohort of 2200 adolescents aged 15 to 19 years answered an online questionnaire on musculoskeletal pain. Of these, 504 reported knee pain, and 153 of these were clinically diagnosed with PFP. Now, after 5 years, the 504 adolescents, as well as 252 randomly selected adolescents who did not report knee pain in 2011, will be contacted again to gain insights into their prognosis.
295 studies on the registry are indexed under Patellofemoral Pain Syndrome; 75 are open to participants now.
This study's enrollment of 540 is above the median of 43 across 48 observational studies indexed under Patellofemoral Pain Syndrome.
Browse Patellofemoral Pain Syndrome studies →Aalborg University is the lead sponsor of 178 studies on the registry; 37 are open to participants now.
Counted across the registry records on this site, refreshed daily.
In September 2011, students at 4 upper secondary schools in Aalborg were invited to answer an online questionnaire and to be part of the APA2011 cohort. From 2846 potential responders, 2200 adolescents responded to the questionnaire, corresponding to a response rate of 77%. A total of 504 adolescents indicating knee pain at least monthly were successfully contacted (a response rate of 83% of those who reported their telephone numbers) and were asked standardized questions on the telephone. This forms the cohort of 504 adolescents with knee pain. In addition a random selected group of adolescents without knee pain in 2011 will be contacted and asked the same questions as those with knee pain.
From the 504, 153 were diagnosed with PFP, the criteria for which included:
Exclusion criteria were:
In September 2011, students at 4 upper secondary schools in Aalborg were invited to answer an online questionnaire and to be part of the APA2011 cohort. From 2846 potential responders, 2200 adolescents responded to the questionnaire, corresponding to a response rate of 77%. A total of 504 adolescents indicating knee pain at least monthly were successfully contacted (a response rate of 83% of those who reported their telephone numbers) and were asked standardized questions on the telephone. This forms the cohort of 504 adolescents with knee pain. In addition a random selected group of adolescents without knee pain in 2011 will be contacted and asked the same questions as those with knee pain.
Other: No intervention
No intervention
Knee pain during the last week
All subjects are asked if they experienced knee pain during the last week
Time frame: 5 years
Knee pain during the last 30 days
Did you experience knee pain during the last 30 days?
Time frame: 5 years
Frequency of knee pain
Frequency of knee pain divided into (almost daily, several times per week, weekly, monthly, rarely, never
Time frame: 5 years
When did your knee pain resolve
Time frame: 5 years
Pain in other regions of the body
Time frame: 5 years
Seeking medical attention for your knee pain
Time frame: 5 years
Previous treatments for your knee pain
Time frame: 5 year
Use of pain medication
Time frame: 5 years
Worst pain last week
Measured on a numeric rating scale
Time frame: 5 years
Knee Injury and Osteoarthritis Outcome score
Time frame: 5 years
Health-related quality of life
Measure with the EQ-5D-3L
Time frame: 5 years
The influence of knee pain on choice of activity level, mood, choice of education and professional career
Time frame: 5 years
Physical activity level
Measured with the IPAQ
Time frame: 5 years
Number of sports participation per week
Time frame: 5 years
The effect of knee pain on sports participation
Time frame: 5 years
Self-reported sleep problems
Assessed by asking three questions related to: trouble falling asleep, wake several times per night and trouble staying asleep.
Time frame: 5 years
No study locations are listed for this record.
Plan to share: Undecided
This study is completed, as verified in Jan 2017. You cannot join it, but the record below documents what was studied.
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Aalborg University