Table 1.

Patient characteristics by time from primary THA to first-time revision surgery

	Time from primary THA to first-time revision surgery		P value*
	≤5 years (37 hips)	>5 years (64 hips)
Gender			0.0027
Male	17	11
Female	20	53
Age at primary THA, years			0.0165
<50	4	21
≥50 years	33	43
Primary diagnosis			0.1706
Osteoarthritis	23	49
Other	14	15
Previous surgery			1.0000
Yes	8	15
No	29	49

*Fisher’s exact test