Incontinence is the inability to control the passage of urine. This can range from an occasional leakage of urine to a complete inability to hold any urine. Urinary incontinence affects approximately 13 million people in the United States and is more common in women than in men. It occurs in 10 percent to 25 percent of women younger than age 65 and in 15 percent to 30 percent of women older than age 60 who do not live in nursing homes. Among nursing home residents, incontinence is even more common, affecting more than 50 percent of female patients.