What is the HAGOS?

HAGOS is developed as an instrument to assess the patients' perception about their hip and/or groin disability and associated problems. HAGOS is a quantitative measure of the patient's hip and groin disability according to the different levels of the International Classification of Functioning (ICF). The measure reflects the patient's perception of his/her disability as well as his/her actual disability.

HAGOS is intended to be used for hip and/or groin disability.

HAGOS is validated in a LK 1.0 version.

HAGOS is meant to be used over both short and long time intervals; to assess changes from week to week induced by treatment (medication, operation, physical therapy) or over years due to primary or post traumatic injuries.

HAGOS can be used to assess groups and to monitor individuals.

HAGOS content validity was ensured through a systematic literature review, through interviews with 25 patients with hip and/or groin pain, an expert panel, and by testing 101 patients seeking medical care due to hip and/or groin pain..

HAGOS consists of 6 subscales; Pain, other Symptoms, Physical function in daily living (ADL), Function in sport and recreation (Sport/Rec), Participation in physical activities (PA), and hip related Quality of life (QOL). The past week is taken into consideration when answering the questions. Standardised answer options are given (5 Likert boxes) and each question gets a score from 0 to 4. A normalised score (100 indicating no symptoms and 0 indicating extreme symptoms) is calculated for each subscale. The result can be plotted as an outcome profile.

HAGOS is patient-administered, the format is user friendly, and takes about 10 minutes to fill out.

HAGOS is self-explanatory and can be administered in the waiting room or used as a mailed survey.

HAGOS has been used in patients 18-63 years old. HAGOS has high test-retest reproducibility (ICC >0.82) and low measurement error at the group level (3-6 points) [1].

HAGOS construct validity has been determined by comparing it with SF-36 and expected correlations were found [1].

HAGOS responsiveness has been determined by comparing it to a Global Perceived Effect score and expected correlations were found.

HAGOS validation work is ongoing. HAGOS is currently being used in several clinical studies involving patients with hip and/or groin disability.

HAGOS is currently available in two language versions, a Danish version and an English version [1].

1. Thorborg K, Hölmich P, Christensen R, Petersen J, Roos EM. The Copenhagen Hip and Groin Outcome Score (HAGOS): development and validation according to the COSMIN checklist. British Journal of Sports Medicine (Accepted for publication, 2 March, 2011).