To determine if celecoxib 200 mg once daily is as effective as diclofenac 50 mg three times daily in the treatment of pain symptoms associated with osteoarthritis of the hip

Inclusion Criteria:

• Diagnosed with osteoarthritis of hip and requiring joint replacement
• Eligible for chronic therapy with an NSAID

Exclusion Criteria:

• Hip surgery anticipated within 8 calendar weeks after first visit
• Active gastrointestinal disease or recent diagnosis of gastrointestinal ulceration (within 60 days of first visit)