Risk and Risk Perception of Knee Osteoarthritis in the US

Mass General Brigham

Status: Completed

Conditions: Knee Osteoarthritis

Treatments: Behavioral: Internet-Based Osteoarthritis Risk Calculator; Behavioral: Generic osteoarthritis information

Study type: Interventional

Funder types: Other

Identifiers

NCT02704286

2015P000249

Details and patient eligibility

About

The investigators have created an interactive knee osteoarthritis (OA) risk calculator that estimates a user's risk of developing symptomatic knee OA as well as the user's risk for undergoing a total knee replacement (TKR) within their lifetime. To test the impact of the calculator, the investigators recruited OA-free subjects from Amazon's Mechanical Turk. Participants were randomized to either access general information about OA or use the risk calculator in addition to accessing general OA information. The investigators hypothesized that participants randomized to the risk calculator arm would have more accurate perception of their knee OA risk and would have increased willingness to change risky behavior compared to the general OA information group.

Enrollment: 380 patients

Sex: All

Ages: 25 to 45 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Participants must be between the ages of 25 and 45
• Participants must live in the United States
• Participants must not be diagnosed with osteoarthritis

Exclusion criteria

• All participants who did not meet the inclusion criteria

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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380 participants in 2 patient groups

Generic Osteoarthritis Risk Information

Sham Comparator group

Description:

Participants in this arm received generic osteoarthritis information that was not personalized.

Treatment:

Behavioral: Generic osteoarthritis information

Personalized Osteoarthritis Risk

Experimental group

Description:

Participants in this arm obtained their personalized osteoarthritis risk from the internet-based Osteoarthritis Risk Calculator.

Treatment:

Behavioral: Internet-Based Osteoarthritis Risk Calculator