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.
As for how much to spend: Wedding guests say theyâll spend an average of $108 on gifts, up 15% from 2012. Not all gifts are created equal, however, and consumers will weigh factors like relationship to the bride or groom (45%) and budget at the time of the wedding (33%) before deciding how much to spend.gain, how much to spend depends on how close you are to the person. The consensus on Baby Center suggests: $20-$25 for a co-worker or acquaintance, $50 for a close friend, or $100 for a best friend or family member.