Table 1.

Baseline risk factors and final outcome.

Variables	Overall	Group I	Group II	P value
Number of patients, n, %	41	34	7
Age, years	64.4	64.7	64.3	0.724
Male/female, n	13/28	11/23	2/5	0.127
Diabetes mellitus, n, %
Yes	31 (75.6)	26 (76.47)	5 (71.42)	0.326
No	10 (24.4)	8 (23.53)	2 (28.58)
Urologic records, n, %
Yes	11 (26.83)	9 (29.03)	2 (28.58)	0.624
No	30 (73.17)	25 (70,93)	5 (71.42)
Presentation delay, days	3.28	3.12	3.74	0.092
Obstructive pyelonephritis n, %
Yes	24(58.53)	21 (61.72)	3 (42.85)
No	17(41.47)	13 (39.28)	4 (57.15)	0.324
EPN Class, n, %
1	21 (51.21)	19 (55.88)	2 (28.58)	0.089
2	9 (21.95)	7 (20.58)	2 (28.58)
3	7 (17.08)	5 (14.7)	2 (28.58)
4	4 (9.75)	3 (8.82)	1 (14.3)
Blood sugar Level, mmol/l	11.24	11.05	12.14	0.724
Leucocytic count	16482.34	16975.24	16.247.32	0.782
Platelet count	215.12 x 10.3	225.18 x 10.3	112.24 x 10.3	0.012
Hyponatremia (<120 mmol/L)
Yes	4(9.75)	3 (8.82)	1 (14.3)	0.124
NO	37(90.25)	31 (91.18)	6 (85.7)
Hemodialysis, n, %
Yes	7 (17.08)	1 (2.94)	6 (85.7)	0.024
NO	34 (82.92)	33 (97.06)	1 (14.3)
Initially Septic shock, n, %
Yes	7 (17.08)	2 (5.88)	5 (71.42)	0.031
No	34 (82.92)	32 (94.12)	2 (28.58)
Management, n, %
Antibiotics alone	14 (34.15)	12 (35.29)	2 (34.15)	0.078
Ureteral drainage + antibiotics	15 (63.58)	12 (35.29)	3 (42.58)
Nephrostomy + antibiotics	8 (19.52)	7 (20.58)	1 (14.3)
Percutaneous drainage + antibiotics	3 (7.32)	2 (5.88)	1 (14.33)
bladder drainage + antibiotics	1 (2.43)	1 (2.94)	0 (0)
Death, n, %
Yes	3 (7.89)	1 (2.94)	3 (42.58)	0.01
No	38 (92.11)	33 (97.06)	4 (57.42)