Table 1.
Association between independent variables and outcome
| Variables | Chi-square | df | P-value |
|---|---|---|---|
| Age | 26.980 | 1 | 0.001 |
| Gender | 0.150 | 1 | 0.698 |
| BMI | 95.265 | 2 | < 0.001 |
| APACHE | 350.519 | 2 | < 0.001 |
| KDIGO class | 93.712 | 3 | < 0.001 |
| Admitting ward | 93.009 | 3 | < 0.001 |
| Co-morbidities | 72.626 | 1 | < 0.001 |
| Source of AKI | 0.074 | 1 | 0.785 |
| Length of stay | 16.588 | 2 | < 0.001 |
| Interventions | 69.377 | 6 | < 0.001 |
| Bill payment | 31.988 | 2 | < 0.001 |
[i] Clinical data of sampled patients indicating demographic profile (Age, Gender, BMI) clinical state (APACHE & KDIGO), co-morbidity, source of AKI (hospital-acquired or community-acquired), length of ICU stay, intervention rendered while in ICU (renal replacement therapy RRT, Vasopressors, Mechanical ventilation MV), bill payment (either out of pocket expenses, through the National health insurance scheme or the Social welfare services)
Table 2.
Logistic regression table
| Variables | Odd ratio | 95% CI lower | 95% CI upper | p-value |
|---|---|---|---|---|
| Age | ||||
| < 50 years | 0.550 | 0.140 | 2.165 | 0.392 |
| > 50 years | - | - | - | |
| Gender | ||||
| Male | 0.746 | 0.029 | 19.389 | 0.782 |
| Female | - | - | - | - |
| BMI | ||||
| Underweight | 0.746 | 0.029 | 19.386 | 0.860 |
| Normal weight | 0.000 | 0.000 | - | 0.997 |
| Obese | - | - | - | - |
| APACHEII | ||||
| Mild | 0.032 | 0.001 | 0.757 | 0.033 |
| Moderate | - | 0.000 | 0.002 | < 0.001 |
| Severe | - | - | - | - |
| Classification | ||||
| KDIGO1 | 9.087 | 0.558 | 148.023 | 0.121 |
| KDIGO 2 | 1.144 | 0.060 | 21.693 | 0.929 |
| KDIGO 3 | - | - | - | - |
| Source of AKI | ||||
| Community | 12.031 | 0.102 | 2.587 | 0.420 |
| Hospital | - | - | - | - |
| Admitting ward | ||||
| Obs&Gyn | 0.143 | 0.007 | 2.917 | 0.206 |
| Medical | - | 0.000 | - | 0.997 |
| Surgical | 0.133 | 0.006 | 2.899 | 0.199 |
| Emergency | - | - | - | - |
| Length of stay | ||||
| ≤ 7 days | 0.249 | 0.007 | 8.716 | 0.444 |
| 8-14 days | 0.000 | 0.000 | - | 0.999 |
| > 14 days | - | - | - | - |
| Comorbidities | ||||
| Yes | 12.031 | 0.031 | 0.102 | 2.587 |
| No | - | - | - | - |
| Interventions | ||||
| RRT | 0.000 | 0.000 | - | 0.995 |
| Vasopressors | 3.305 | 0.007 | 1501.012 | 0.702 |
| MV | 1.115 | 0.061 | 20.263 | 0.941 |
| RRT + Vasopressors | 1.403 | 0.109 | 18.047 | 0.795 |
| RRT + MV | 1.546 | 0.197 | 12.144 | 0.678 |
| RRT + Vasopressors + MV | 0.001 | 0.000 | 0.059 | < 0.001 |
| RRT + Vasopressors | - | - | - | - |
| Bill payment source | ||||
| Out of pocket | 7.050 | 0.009 | 5554.736 | 0.566 |
| Insurance scheme | 2.972 | 0.147 | 59.937 | 0.477 |
| Social welfare | - | - | - | - |