Table 2 Univariate and multivariate logistic regression analyses of risk factors for delayed discharge after day-surgery PCNL
From: Reasons and risk factors for delayed discharge after day-surgery percutaneous nephrolithotomy
Variables | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
OR | 95% CI | P value | OR | 95% CI | P value | |
Age (y) | 0.999 | (0.969–1.031) | 0.967 | |||
Gender Male/female | 2.383 | (1.086–5.229) | 0.030 | 2.673 | (0.989–7.228) | 0.053 |
BMI (kg/m2) | 0.896 | (0.786–1.022) | 0.103 | |||
Comorbidity Yes/No | 0.808 | (0.262–2.494) | 0.710 | |||
History of ipsilateral surgery Yes/No | 1.739 | (0.640–4.726) | 0.278 | |||
V-LEU − / + / + + / + + + / + + + + | 1.534 | (1.062–2.218) | 0.023 | 0.844 | (0.465–1.535) | 0.579 |
NIT − / + | 3.519 | (1.410–8.782) | 0.007 | 3.814 | (1.026–14.178) | 0.046 |
Urine culture − / + | 1.826 | (0.709–4.703) | 0.212 | |||
Stone burden (mm2) | 1.001 | (1.001–1.002) | < 0.001 | 1.001 | (1.000–1.002) | 0.030 |
Stone density (HU) | 1.000 | (0.999–1.001) | 0.966 | |||
Degree of hydronephrosis None/mild/moderate/serious | 0.933 | (0.626–1.393) | 0.736 | |||
Stone type Single/multiple/staghorn | 1.865 | (0.998–3.485) | 0.051 | 0.564 | (0.230–1.385) | 0.211 |
Operative time (min) | 1.028 | (1.016–1.041) | < 0.001 | 1.020 | (1.001–1.040) | 0.044 |
Number of tracts 1/2/3/4–7 | 2.074 | (1.471–2.925) | < 0.001 | 0.569 | (0.274–1.182) | 0.131 |
Tract size Standard/mini | 0.262 | (0.113–0.607) | 0.002 | 1.000 | (0.310–3.227) | 0.999 |
Number of nephrostomy tubes 0/1/2/3/4 | 3.716 | (2.168–6.371) | < 0.001 | 4.282 | (1.779–10.308) | 0.008 |
SFR (%) | 2.324 | (0.834–6.476) | 0.107 | |||