Table 2.

Prevalence of Meniscal Damage in the Right Knee among the 426 Men and 565 Women in the Study Cohort.^*

Meniscal Damage	Medial Meniscus		Lateral Meniscus		Medial or Lateral Meniscus
	no.	% (95% CI)	no.	% (95% CI)	no.	% (95% CI)
Men
One or more tears without destruction	121	28 (24–33)	37	9 (6–12)	139	33 (28–37)
Destruction†	34	8 (6–11)	9	2 (1–4)	39	9 (7–12)
Any damage	155	36 (32–41)	46	11 (8–14)	178	42 (37–47)
Women
One or more tears without destruction	71	13 (10–16)	60	11 (8–13)	110	19 (16–23)
Destruction†	49	9 (7–11)	17	3 (2–5)	62	11 (9–14)
Any damage	120	21 (18–25)	77	14 (11–17)	172	30 (27–34)

^*Milder meniscal signal abnormalities on MRI that were not considered to be sufficient evidence of a tear were present in 68 men (16%) and 104 women (18%) who otherwise did not have evidence of meniscal tear or destruction.

^†With persons with previous knee surgery (56 persons) excluded, the prevalence of destruction (of either the medial or lateral meniscus) was 7% among men and 9% among women (a decrease of approximately 2%).