Table 2 Characteristics of participants

Age, years

   < 25

(2.5)

(6.1)

(5.1)

   25–34

(6.2)

(11.7)

(10.3)

   35–44

(11.1)

(12.2)

(11.9)

   45–54

(24.7)

(18.3)

(19.9)

   55–64

(19.8)

(17.8)

(18.3)

   65–74

(24.7)

(18.3)

(19.9)

   ≥75

(9.9)

(10.9)

(10.6)

   Unknown

(1.2)

(4.8)

(3.9)

Race

   Black

(70.4)

(75.7)

(74.3)

   Hispanic

(16.1)

(11.7)

(12.9)

   White

(0.0)

(1.3)

(0.01)

   Other/Not stated

(13.6)

(11.3)

(11.9)

Education

   Less than high school

(9.9)

(5.7)

(6.8)

   High school graduate

(29.6)

(31.3)

(30.9)

   Some college/college graduate

(23.5)

(20.4)

(21.2)

   Graduate school

(4.9)

(5.7)

(5.5)

   Not stated

(32.1)

(37.0)

(35.7)

Body mass index (BMI), kg/m²

   < 25.0

(14.8)

(16.5)

(16.1)

   25.0–29.9

(33.3)

(34.3)

(34.1)

   ≥30

(38.3)

(41.7)

(40.8)

   Not stated

(13.6)

(7.4)

(9.0)

History of smoking*

   Yes

(44.4)

(25.7)

(30.5)

   No

(55.6)

(74.3)

(69.5)

Previous surgical history

   Bladder surgery**

(0.0)

(3.5)

(2.6)

   Urinary leakage surgery**

(0.0)

(0.4)

(0.3)

   Hysterectomy***

--

(21.3)

--

   Prostate surgery

(6.2)

--

--

OAB status

   Normal

(39.5)

(51.7)

(48.5)

   OAB with UI

(45.7)

(40.0)

(41.5)

   OAB without UI

(14.8)

(8.3)

(10.0)