Risk and Risk Perception of Knee Osteoarthritis in the US

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

380 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-04-30

Study Completion Date

2015-05-31

Brief Summary

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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.

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Detailed Description

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Conditions

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Knee Osteoarthritis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Generic Osteoarthritis Risk Information

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

Group Type SHAM_COMPARATOR

Generic osteoarthritis information

Intervention Type BEHAVIORAL

Subjects viewed generic (i.e. not personalized) information about osteoarthritis risk factors

Personalized Osteoarthritis Risk

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

Group Type EXPERIMENTAL

Internet-Based Osteoarthritis Risk Calculator

Intervention Type BEHAVIORAL

The investigators have developed a personalized risk calculator for knee osteoarthritis. This risk calculator uses the Osteoarthritis Policy Model to estimate an individual's risk of developing knee osteoarthritis within their lifetime based on demographic information and risk factors. It shows this information to the user with interactive graphs and compares their risk to the risk of an average American of the same age.

Interventions

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Internet-Based Osteoarthritis Risk Calculator

The investigators have developed a personalized risk calculator for knee osteoarthritis. This risk calculator uses the Osteoarthritis Policy Model to estimate an individual's risk of developing knee osteoarthritis within their lifetime based on demographic information and risk factors. It shows this information to the user with interactive graphs and compares their risk to the risk of an average American of the same age.

Intervention Type BEHAVIORAL

Generic osteoarthritis information

Subjects viewed generic (i.e. not personalized) information about osteoarthritis risk factors

Intervention Type BEHAVIORAL

Eligibility Criteria

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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

Minimum Eligible Age

25 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes