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Table 1 Main characteristics of the women at baseline.

From: Dietary habits in women with recurrent idiopathic calcium nephrolithiasis

  STONE FORMERS
(N = 143)
CONTROLS
(N = 170)
p
AGE (yr) 43 ± 13 42 ± 11 0.32
WEIGHT (kg) 64 ± 12 62 ± 11 0.32
HEIGHT (cm) 163 ± 7 163 ± 7 0.51
BMI (Kg/m) 2 24,1 ± 4,4 23,5 ± 3,9 0.21
SYSTOLIC PRESSURE (mmHg) 118 ± 6 118 ± 12 0.11
DIASTOLIC PRESSURE (mmHg) 76 ± 5 74 ± 8 0.09
STONE RATE
(number of stones per patient per year)*
0,51 ± 0,76 - -
AGE OF THE FIRST EPISODE (yr) 35,3 ± 14,6 - -
INTERVAL BETWEEN
1ST AND 2 ND EPISODE (yr)
7,1 ± 9,6 - -
  1. - Data are shown as mean ± standard deviation.
  2. * Stone rate was calculated following the formula (total n. of stones - n. of stone at 1st episode/time between 1st and last episode).