By definition, the etiology of primary osteoarthritis is unknown, but the pathology and pathogenesis of osteoarthritis have been extensively studied. [5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15] Historically, osteoarthritis has been divided into primary and secondary forms, although this division is somewhat artificial.
What's your relationship to the couple? - While the average gift ranges from $50 to $100 for those under 30, expect to spend $100 or more if you're close friends with the couple and are more established financially. For your nearest and dearest friends and relatives, gift costs can range from over a $100 to $200 or more.
A typical wedding gift is $100 per person ($200 per couple). You'll give more if you're better off or if the bride or groom is family. This is also in addition to any shower or other gifts. Of course, not everybody gives the same amount.eddings are huge and so are the gifts (average gift is about $250 for an average salary couple/ $500 if your really well off).