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Table 1 Baseline data of the studied population (clinical history)

From: The clinical and imaging presentation of acute "non complicated" pyelonephritis: A new profile for an ancient disease

Patient features Single
lesions
Multiple lesions P Simple lesions Abscessed
Lesions
p All cases
N 24 95 - 72 47 - 119
Age 28
(15-72)
33
(15-68)
0.38* 30.5
(15-72)
34
(16-63)
0.80* 32
(15-72)
History of frequent UTI 14
(58.3%)
41
(43.6%)
0.29^ 38
(52.8%)
17
(36.2%)
0.11^ 55
(46.2%)
Previous scars (APN) 2
(8.3%)
16
(16.8%)
0.47^ 13
(18.1%)
5
(10.6%)
0.4^ 18
(15.1%)
History of stone disease (§) 5
(20.8%)
14
(14.7%)
0.68^ 16
(22.2%)
3
(6.4%)
0.04^ 19
(16%)
Previous pregnancy 9
(37.5%)
40
(42.1%)
0.69^ 31
(43.1%)
18
(38.3%)
0.29^ 49
(41.2%)
Birth control pills 5
(20.8%)
21
(22.1%)
1^ 15
(20.8%)
11
(23.4%)
0.92^ 26
(21.8%)
  1. * Mann-Whitney U test
  2. ^ Pearson's chi-square test
  3. § By definition, patients with active stone disease were excluded.