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Table 1 Relationship between demographic characteristics and SUI

From: Epidemiological survey of adult female stress urinary incontinence

Demographic characteristics N SUI χ2 P
N %
Place of residence
Urban 1869 564 30.2 17 < 0.001
 Rural 2135 777 36.4   
Age (years)
 20–29 1455 333 22.9 128 < 0.001
 30–39 820 293 35.7   
 40–49 882 384 43.5   
 50–59 532 201 37.8   
  ≥ 60 315 130 41.3   
Occupation
 Manual work 637 279 43.8 55 < 0.001
Mental work 1944 563 29   
Manual/mental work 783 295 37.7   
 Unemployed 640 204 31.9   
BMI (kg/m2)
 < 18.5 464 130 28 154 < 0.001
 18.5–24 2353 644 27.4   
 > 24 1187 567 47.8   
Physical exercise (times/week)
 0 1784 620 34.8 6.6 0.09
 1–2 1183 401 33.9   
 3–4 595 173 29.1   
 ≥ 5 442 147 33.3   
Sedentary
 Yes 2537 764 30.1 35 < 0.001
 No 1467 577 39.3   
Smoking
 Yes 92 45 48.9 10 0.002
 No 3912 1296 33.1   
Drinking
 Yes 217 56 25.8 6 0.01
 No 3787 1285 33.9   
Daily water intake (ml)
 < 500 533 150 28.1 8 0.04
 500–1000 2212 753 34   
 1000–2000 927 324 35   
 > 2000 332 114 34.3   
Diet
 Mainly staple food (noodles, buns) 1775 690 38.9 55 < 0.001
 Mainly vegetables and fruits 221 40 18.1   
 Mainly meat protein 87 29 33.3   
 Balanced diet consisting of three types above 1921 582 30.3   
  1. SUI stress urinary incontinence, BMI body mass index