Table 2.
The demographic, investigation, clinical and procedure characteristics of the length of stay data set (n = 1148)
| Variable | Value | ||
|---|---|---|---|
| LOS (Days) | 1, > 5; 0,≤ 5 | ||
| Gender | 1, male; 0, female | ||
| Age | 1, 0-10 else 0; 1, 10-20 else 0; 1, 20-30 else 0; 1, 30-40 else 0; 1, 40-50 else 0; 1, 50-60 else 0, 1, > 60 else 0 | ||
| Marital Status | 1, single else 0; 1, married else 0; 1, unknown else 0 | ||
| Address | 1, NCR ; nonNCR, 0 | ||
| Channel | 1, cash else 0; 1, corporate else 0; 1, PSU else 0; 1, TPA else 0 | ||
| Type of admission | 1, emergency else 0; 1, direct else 0 | ||
| Previous admission | 1, yes; 0, no | ||
| Investigations | Normal | Low | High |
| Heamatocrit (%) | if((men & hct≥ 40 & hct≤ 50) or (women & hct≥ 36 & hct≤ 46)), 1 else 0 | if((men & hct< 40) or (women & hct< 36)), 1 else 0 | if((men & hct> 50) or (women & hct> 46)), 1 else 0 |
| Haemoglobin (g/dL) | if((men & age≥ 13yr & hgb≥ 13 & hgb≤ 17) or (women & age≥ 13yr & hgb≥ 12 & hgb≤ 15) or (age< 13yr &hgb≥ 11 & hgb≤ 15)), 1 else 0 | if((men & age≥ 13yr & hgb< 13) or (women & age≥ 13yr & hgb< 12) or (age< 13yr & hgb< 11)), 1 else 0 | if((men & age≥ 13yr & hgb> 15) or (women & age≥ 13yr & hgb< 17) or (age< 13yr & hgb> 15)), 1 else 0 |
| TLC (x109/L) | if((tlc≥ 4) & (age≥ 17yr & tlc≤ 10) or (age< 17yr & tlc≤ 15)), 1 else 0 | if(tlc< 4), 1 else 0 | if((age≥ 17yr & tlc> 10) or (age< 17yr & tlc> 15)), 1 else 0 |
| Lymphocytes (%) | if((age≥ 8yr & lym≥ 20 & lym≤ 40) or (age< 8yr & lym≥ 40 & lym≤ 75)), 1 else 0 | if((age≥ 8yr & lym< 20) or (age< 8yr & lym< 40)), 1 else 0 | if((age≥ 8yr & lym> 40) or (age< 8yr & lym> 75)), 1 else 0 |
| Monocytes (%) | if(mono≥ 2 & mono≤ 10), 1 else 0 | if(mono< 2), 1 else 0 | if(mono> 10), 1 else 0 |
| Neutrophils (%) | if(neutro≥ 20 & neutro≤ 45), 1 else 0 | if(neutro< 20), 1 else 0 | if(neutro> 45), 1 else 0 |
| Eosinophils (%) | if(eos≥ 1 & eos≤ 6), 1 else 0 | if(eos< 1), 1 else 0 | if(eos> 6), 1 else 0 |
| MCH (Pg) | if(mch≥ 26 & mch≤ 34), 1 else 0 | if(mch< 26), 1 else 0 | if(mch> 34), 1 else 0 |
| MCHC (gm/dL) | if(mchc≥ 32 & mchc≤ 36), 1 else 0 | if(mchc< 32), 1 else 0 | if(mchc> 36), 1 else 0 |
| MCV (fL) | if(mcv≥ 80 & mcv≤ 100), 1 else 0 | if(mcv< 80), 1 else 0 | if(mcv> 100), 1 else 0 |
| RBC Count (x1012/L) | if(rbc≥ 4.5 & rbc≤ 5.5), 1 else 0 | if(rbc< 4.5), 1 else 0 | if(rbc> 5.5), 1 else 0 |
| RDW (%) | if(rdw≥ 11.5 & rdw≤ 14.5), 1 else 0 | if(rdw< 11.5), 1 else 0 | if(rdw> 14.5), 1 else 0 |
| ALT (IU/L) | if((men & alt≥ 17 & alt≤ 63) or (women & alt≥ 14 & alt≤ 54)), 1 else 0 | if((men & alt< 17) or (women & alt< 14)), 1 else 0 | if((men & alt> 63) or (women & alt> 54)), 1 else 0 |
| AST (IU/L) | if(ast≥ 15 & ast≤ 41), 1 else 0 | if(ast< 15), 1 else 0 | if(ast> 41), 1 else 0 |
| Potassium (mmol/L) | if(k ≥ 3.6 & k ≤ 5.1), 1 else 0 | if(k < 3.6), 1 else 0 | if(k > 5.1), 1 else 0 |
| Sodium (mmol/L) | if(na≥ 136 & na≤ 144), 1 else 0 | if(na< 136), 1 else 0 | if(na> 144), 1 else 0 |
| Creatinine (mg/dL) | if((men & cr≥ 0.6 & cr≤ 1.2) or (women & cr≥ 0.4 & cr≤ 1)), 1 else 0 | if((men & cr< 0.6) or (women & cr< 1.4)), 1 else 0 | if((men & cr> 1.2) or (women & cr> 1)), 1 else 0 |
| Albumin (g/dL) | if(albm≥ 3.5 & albm≤ 5), 1 else 0 | if(albm< 3.5), 1 else 0 | if(albm> 5), 1 else 0 |
| Bilirubin Total (mg/dL) | if(tbil≥ 0.3 & tbil≤ 1.2), 1 else 0 | if(tbil< 0.3), 1 else 0 | if(tbil> 1.2), 1 else 0 |
| Bilirubin Direct (mg/dL) | if(dbil≥ 0.1 & dbil≤ 0.5), 1 else 0 | if (dbil< 0.1), 1 else 0 | if(dbil> 0.5), 1 else 0 |
| Bilirubin Indirect (mg/dL) | if(ibil≥ 0.1 & ibil≤ 1), 1 else 0 | if(ibil< 0.1), 1 else 0 | if(ibil> 1), 1 else 0 |
| Globulin (g/dL) | if(glb≥ 2.9 & glb≤ 3.3), 1 else 0 | if(glb< 2.9), 1 else 0 | if(glb> 3.3), 1 else 0 |
| Total Protein (g/dL) | if(tp≥ 6.5 & tp≤ 8.1), 1 else 0 | if(tp< 6.5), 1 else 0 | if(tp> 8.1), 1 else 0 |
| Platelet Count (x109/L) | Severe Thrombocytopenia | Moderate Thrombocytopenia | Mild Thrombocytopenia |
| if(plt< 20), 1 else 0 | if(plt> 20 & plt≤ 50), 1 else 0 | if(plt> 50 & plt≤ 100), 1 else 0 | |
1 There are two types of admission (emergency & direct) and we have created two binary independent variables for this and the binary variables only reflect the presence of the label as ’1’ or ’0’ for the individual patients. For example, if the patient is admitted to an emergency then the value is 1, if not then 0. Similarly, for the channel, there are 4 channels (cash, corporate, PSU, TPA) and we have created 4 independent binary variables for this and converted values as 0/1 similar to what we have done for the type of admission, 2 TLC: total leucocyte count; ALT: alanine aminotransferase; AST: aspartate aminotransferase; RBC: red blood cell count; RDW: red cell distribution width; hct: Heamatocrit; hgb:Haemoglobin, lym:Lymphocytes; mono:Monocytes; neutro:Neutrophils; eos:Eosinophils; k:Potassium; na:Sodium; cr:Creatinine; alb:Albumin; tbil:Bilirubin Total; dbil:Bilirubin Direct; ibil:Bilirubin Indirect; glb:Globulin; tp:Total Protein; plt:Platelet Count