An Epidemiological Study on Winter Sports Injury in Chinese Population

Study Overview
=================
Brief Summary
-----------------
The aims of the study are to describe the injury patterns among recreational skiers and snowboarders in China and to provide primary data to guide the reconstruction of regional healthcare facilities to deal with the increasing number of participants in snow sports.

Detailed Description
-----------------
A retrospective study was performed in Ski Resorts in Chongli, China. 5000-10000 injured skiers and snowboarders will be recruited. Data of all injury patients in the resort clinic will be collected. Patients' information, including sex, age, equipment, skill level and injured body part, will be analysed.

Official Title
-----------------
An Epidemiological Study on Winter Sports Injury in Chinese Population

Conditions
-----------------
Sports Injury

Intervention / Treatment
-----------------
* Other: no intervention


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Skiing and snowboarding injuries Exclusion Criteria: Skiing and snowboarding visitors without injuries
Sexes Eligible for Study
-----------------
All

Study Plan
=================
How is the study designed?
-----------------

Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| sports injuries<br>Patients were classified according to self-reported years of participation in skiing and snowboarding: beginner (first season), medium (1-5 years), advanced (5-10 years) and expert (≥10 years). Date of injury was divided into weekdays and weekends/ holidays according to the Chinese government holiday arrangement. | Other: no intervention<br>* no intervention<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| sex | male/female | 1 week after injury | 
| age | 15-60/>60 | 1 week after injury | 
| Equipment | Equipment was classified into skis and snow-boards. Special equipment such as cross-country skis and skiboards is rare in China and has not been recorded in the present study. | 1 week after injury | 
| Skill level | Patients were classified according to self-reported years of participation in skiing and snowboarding: beginner (first season), medium (1-5 years), advanced (5-10 years) and expert (≥10 years). | 1 week after injury | 
| Date of injury | Date of injury was divided into weekdays and weekends/holidays according to the Chinese government holiday arrangement. | 1 week after injury | 
| Causes of injury | We summarised causes of injury into two types according to the subjective description of the scene of injury: not involving others, defined as falling or crashing without any body contact with others; and involving others, defined as crashing that involves two or more people. | 1 week after injury | 
| Slope difficulty | Slope difficulty was categorised into beginner trail, medium trail and advanced trail according to the official data of slope inclination angle. | 1 week after injury | 
| Injured body parts | Injured body parts were categorised into the following four anatomical body regions: (1) head/cervical, (2) torso, (3) upper extremity and (4) lower extremity. | 1 week after injury |