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Table 2 General characteristics of the study population by sites of stones

From: Morpho-constitutional analysis of urinary stones from patients with urolithiasis in the Democratic Republic of Congo

Variables Over all n = 132 (%) Upper tract n = 82 (%) Lower tract n = 50 (%) p
Age 48.1 ± 17.1 45.1 ± 14.3 53.1 ± 20.1  < 0.001
  ≤ 19 years 6(4.5) 1(1.2) 5(10.0)
 20–39 years 38(28.8) 32(39.0) 6(12.0)
 40–59 years 49(37.1) 36(43.9) 13(26.0)
  ≥ 60 years 39(29.5) 13(15.9) 26(52.0)
Sex      < 0.001
 Female 37(28.0) 34(41.5) 3(6.0)
 Male 95(72.0) 48(58.5) 47(94.0)
BMI     0.852
 Normal 28(43.8) 17(41.5) 11(47.8)
 Overweight 28(43.8) 19(46.3) 9(39.1)
 Obesity 8(12.5) 5(12.2) 3(13.0)
Treatment modalities     0.150
 Open surgery 117(88.6) 69(84.1) 48(96.0)
 Endoscopy 5(3.8) 5(6.1) 0(0.0)
 Spontaneous 10(7.6) 8(9.8) 2(4.0)