Skip to main content

Table 1 Univariate analysis of demographic, clinical, laboratory, and ultrasound variables

From: The identification of pregnant women with renal colic who may need surgical intervention

Variables Total (n = 212) Surgery (n = 100) No surgery (n = 112) p
Age (Q1, Q3), years 29 (26, 32) 29 (26, 32) 29 (27, 32) 0.71
BMI (Q1, Q3), kg/cm2 22 (20.13, 25) 21.9 (20.6,25) 22.55 (19.85, 25.52) 1.00
Gestation (Q1,Q3), wk 23 (18, 27) 22 (19,27) 24 (17, 28) 0.48
History of stones, n (%)     
 Yes 48 (22.6%) 26 (26%) 22 (19.6%) 0.33
 No 164 (77.4%) 90 (74%) 90 (80.4%)  
Pain duration (Q1, Q3), d     < 0.01
  < 4d 160 (75.5%) 60 (56%) 100 (89.3%)  
 ≥ 4d 52 (24.5%) 40 (44%) 12 (10.7%)  
Fever, n (%)     0.01
 Yes 34 (16%) 23 (23%) 11 (9.8%)  
 No 178 (84%) 77 (77%) 94 (90.2%)  
WBC s (Q1, Q3), 109 /L 11.9 (10.05, 14.62) 12.6 (10.4, 14.92) 11.27 (9.53, 13.72) 0.01
CRP 1.15 (0.56, 3.12) 2.03(0.85, 3.83) 0.84 (0.40, 1.52) < 0.01
Kidney stone size     0.83
 < 1 cm 188(88.6%) 88 (88%) 100 (89.3%)  
 ≥ 1 cm 24 (11.4%) 12 (12%) 12 (10.8%)  
Ureteral stone size     < 0.01
 < 8 mm 154 (72.6%) 54 (54%) 100 (89.3%)  
 ≥ 8 mm 58 (27.4%) 46 (44%) 12 (10.7%)  
Hydronephrosis (Q1, Q3), mm 16 (12, 30.75) 26.5 (15, 59.25) 13 (9.25, 19) < 0.01
 None/mild 158 (74.5%) 54 (54%) 104 (92.9%)  
 Moderate/severe 54 (25.5%) 46 (46%) 8 (7.1%)  
Stone location, n(%)     < 0.01
 Kidney 54 (25.5%) 20 (20%) 34 (30.4%)  
 Ureter 92 (43.4%) 56 (56%) 36(32.1%)  
  Proximal 52 (24.5%) 36 (36%) 16 (14.3%)  
  Distal 40 (18.9%) 20 (20%) 20 (17.9%)  
 None 66 (36.1%) 24 (24%) 42 (37.5%)  
  1. IQR interquartile range, BMI body mass index, wk week, d day, WBCs white blood cells, CRP C-reactive protein