Table 2. Mean and standard deviation of monthly requests and over-utilization rate, unit cost and monthly avoidable cost, for each monitored exam.
| Exam | Monthly requests | Over-utilization rate (%) | Unit cost (€) | Total monthly cost (€) |
|---|---|---|---|---|
| Alanine Transaminase | 17,361 ± 2,144 | 18.0 ± 4.0 | 1.00 | 3,121 |
| Albumin | 11,302 ± 1,403 | 19.3 ± 4.8 | 1.42 | 3,086 |
| Alkaline Phosphatase | 8,978 ± 1,092 | 20.3 ± 6.5 | 1.04 | 1,898 |
| Alpha Fetoprotein | 176 ± 31 | 85.8 ± 30.5 | 7.40 | 1,103 |
| Amylase | 7,394 ± 800 | 19.4 ± 1.6 | 1.84 | 2,640 |
| Antinuclear Antibody | 115 ± 23 | 6.6 ± 4.2 | 9.56 | 73 |
| Antithrombin III | 1,382 ± 205 | 9.3 ± 2.1 | 5.02 | 640 |
| Aspartate Aminotransferase | 4,482 ± 902 | 19,5 ± 8.0 | 1.04 | 905 |
| Beta HCG | 405 ± 48 | 5.9 ± 1.3 | 6.02 | 144 |
| Bilirubin | 16,239 ± 1,921 | 19.1 ± 4.5 | 1.41 | 4,371 |
| Blood Culture—Aerobic | 1,692 ± 226 | 3.4 ± 1.1 | 13.86 | 809 |
| Blood Culture—Anaerobic | 1,692 ± 226 | 12.1 ± 2.9 | 13.86 | 2,841 |
| Chlamydia trachomatis nucleic acid amplification (NAATs) | 56 ± 39 | 48.7 ± 8.8 | 9.41 | 247 |
| Chloride | 6,316 ± 934 | 19.8 ± 6.5 | 1.13 | 1,395 |
| Complete Blood Count* | 23,604 ± 2,873 | 15.3 ± 3.7 | 3.17 | 11,334 |
| Creatinine | 21,159 ± 2,553 | 17.1 ± 2.9 | 1.13 | 4,084 |
| Cytomegalovirus Antibody (IgG) | 275 ± 70 | 10.4 ± 17.7 | 8.07 | 234 |
| D-Dimer | 1,592 ± 208 | 12.8 ± 2.9 | 4.99 | 1,013 |
| Epstein-Barr Virus Antibody (IgG) | 172 ± 49 | 9.6 ± 18.0 | 12.45 | 202 |
| Fibrinogen | 10,862 ± 1,276 | 7.8 ± 1.5 | 12.18 | 10,238 |
| Gamma-Glutamyl Transferase (GGT) | 10,016 ± 1,431 | 19.1 ± 6.2 | 1.13 | 2,149 |
| HDL Cholesterol | 2,089 ± 487 | 8.5 ± 1.9 | 1.43 | 252 |
| HIV1-2 Antibodies | 350 ± 93 | 2.7 ± 1.6 | 10.90 | 106 |
| Immunoglobulin A | 351 ± 82 | 5.8 ± 2.2 | 4.99 | 99 |
| Immunoglobulin G | 338 ± 78 | 8.1 ± 2.1 | 4.99 | 134 |
| Immunoglobulin M | 327 ± 77 | 7.8 ± 1.9 | 4.99 | 125 |
| Lactate Dehydrogenase | 12,710 ± 1,333 | 19.1 ± 4.8 | 1.13 | 2,748 |
| LDL Cholesterol | 1,857 ± 454 | 9.8 ± 2.0 | 0.67 | 120 |
| Magnesium | 6,865 ± 818 | 12.0 ± 3.7 | 1.55 | 1,301 |
| Partial Thromboplastin Time | 10,961 ± 1,265 | 3.7 ± 3.0 | 2.85 | 1,122 |
| Potassium | 19,619 ± 2,217 | 18.0 ± 4.0 | 1.02 | 3,608 |
| Procalcitonin | 2,051 ± 257 | 12.1 ± 3.0 | 14.41 | 3,611 |
| Protein Electrophoresis | 1,896 ± 315 | 8.3 ± 1.6 | 4.23 | 667 |
| Prothrombin Time | 11,200 ± 1,276 | 4.4 ± 3.0 | 2.85 | 1,408 |
| Rubella Antibody (IgG) | 308 ± 102 | 9.8 ± 19.2 | 7.88 | 215 |
| Sedimentation Rate | 1,596 ± 377 | 0.8 ± 0.5 | 1.95 | 24 |
| Sodium | 19,548 ± 2,211 | 14.2 ± 3.4 | 1.02 | 2,841 |
| Total Cholesterol | 8,081 ± 1,390 | 3,4 ± 1.3 | 1.04 | 273 |
| Total Serum Protein | 10,794 ± 1,447 | 18.8 ± 4.9 | 4.23 | 8,522 |
| Toxoplasma Antibody (IgG) | 163 ± 41 | 8.1 ± 18.8 | 7.79 | 104 |
| Triglycerides | 6,833 ± 1,251 | 15.5 ± 4.0 | 1.17 | 1,219 |
| Vitamin B12 | 638 ± 135 | 6.9 ± 1.8 | 7.32 | 318 |
| White blood cell count and differential | 21,974 ± 2,539 | 5.5 ± 1.7 | 3.91 | 4,619 |
| Total | 285,819 | 14.2 ± 3.0 | - | 85,967 |
* Complete Blood Count includes: Red Blood Cells (RBC), Hemoglobin (Hb), Hematocrit (Ht), Mean Corpuscular Volume (MCV), Mean Corpuscular Hemoglobin (MCH), Mean Corpuscular Hemoglobin Concentration (MCHC), Red Cells Dispersion Width (RDW), Platelets (PLTS).