## 4 Results
### Analysis of the Interactive Process Indicators of the Emergency Department
Figure 8: Statistics associated with LOS less than 4 h.  
Figure 9: Age distribution of patients with LOS greater than 4 h.  
\begin{table}
\begin{tabular}{l c c c c c} \hline \hline
**Variables** & **Total Sample** & **Group A \(>\) 4 h** & **RR (\(>\)4 h)** & **Group B \(\leq\) 4 h** & **RR (\(\leq\)4 h)** \\  & **N = 29,621 (\%)** & **NR (\(>\)4 h)** & **N = 64,868 (\%)** & **RR (\(\leq\)4 h)** \\ \hline Adult in poor general condition & 8652 (10.45\%) & 4713 (17.14\%) & **1.88 (1.84-1.92)** & 3939 (7.13\%) & **0.64 (0.63–0.66)** \\ \hline Adult with syncope or lipothymia & 1575 (1.9\%) & 915 (3.33\%) & **1.88 (1.80-1.96)** & 660 (1.19\%) & **0.61 (0.57–0.64)** \\ \hline Assault & 396 (0.48\%) & 92 (0.33\%) & **0.74 (0.62–0.89)** & 304 (0.55\%) & **1.12 (1.06–1.18)** \\ \hline Allergy & 203 (0.25\%) & 52 (0.19\%) & 0.82 (0.65–1.03) & 151 (0.27\%) & 1.08 (1.00–1.17) \\ \hline Apparently drunk & 475 (0.57\%) & 244 (0.89\%) & **1.64 (1.51–1.80)** & 231 (0.42\%) & **0.71 (0.64–0.78)** \\ \hline Asthma & 98 (0.12\%) & 47 (0.17\%) & **1.53 (1.25-1.88)** & 51 (0.09\%) & **0.76 (0.63–0.92)** \\ \hline (Deliberate) Self-harm & 420 (0.51\%) & 245 (0.89\%) & **1.87 (1.72–2.03)** & 175 (0.32\%) & **0.61 (0.54–0.68)** \\ \hline Falls & 1947 (2.35\%) & 308 (1.12\%) & **0.50 (0.45–0.55)** & 1639 (2.97\%) & **1.23 (1.21–1.26)** \\ \hline Headache & 1979 (2.39\%) & 782 (2.84\%) & **1.27 (1.20-1.34)** & 1197 (2.17\%) & **0.88 (0.85–0.91)** \\ \hline Strange behavior & 1301 (1.57\%) & 714 (2.6\%) & **1.77 (1.68–1.86)** & 587 (1.06\%) & **0.65 (0.62–0.69)** \\ \hline Convulsions & 206 (0.25\%) & 149 (0.54\%) & **2.31 (2.13–2.52)** & 57 (0.1\%) & **0.40 (0.32–0.50)** \\ \hline Foreign body & 212 (0.26\%) & 46 (0.17\%) & **0.69 (0.54–0.89)** & 166 (0.3\%) & **1.14 (1.06–1.22)** \\ \hline Diabetes & 279 (0.34 \%) & 195 (0.71\%) & **2.24 (2.07–2.42)** & 84 (0.15\%) & **0.44 (0.37–0.52)** \\ \hline Diarrhea and vomiting & 1835 (2.22\%) & 1073 (3.9\%) & **1.90 (1.82–1.97)** & 762 (1.38\%) & **0.60 (0.57–0.63)** \\ \hline Dyspnea in adults & 4273 (5.16\%) & 2679 (9.75\%) & **2.10 (2.05–2.15)** & 1594 (2.88\%) & **0.53 (0.51–0.55)** \\ \hline Abdominal pain in adults & 7873 (9.51\%) & 4253 (15.47\%) & **1.84 (1.80–1.89)** & 3620 (6.55\%) & **0.65 (0.63–0.67)** \\ \hline Neck pain & 1378 (1.67\%) & 201 (0.73\%) & **0.46 (0.41–0.52)** & 1177 (2.13\%) & **1.25 (1.22–1.28)** \\ \hline Backache & 3929 (4.75\%) & 1182 (4.3\%) & 0.96 (0.91–1.01) & 2747 (4.97\%) & \(1.02\) (1.00–1.04) \\ \hline Sore throat & 1026 (1.25\%) & 276 (1\%) & **0.85 (0.77–0.94)** & 760 (1.38\%) & **1.07 (1.03–1.11)** \\ \hline Testicular pain & 365 (0.44\%) & 125 (0.45\%) & 1.09 (0.95–1.26) & 240 (0.43\%) & 0.96 (0.89–1.03) \\ \hline Chest pain & 3555 (4.3\%) & 1508 (5.49\%) & **1.37 (1.32–1.43)** & 2047 (3.7\%) & **0.83 (0.81–0.86)** \\ \hline Mental illness & 778 (0.94\%) & 237 (0.86\%) & 0.97 (0.87–1.08) & 541 (0.98\%) & 1.01 (0.97–1.06) \\ \hline Sexually Transmitted Diseases & 237 (0.29\%) & 34 (0.12\%) & **0.46 (0.33–0.62)** & 203 (0.37\%) & **1.25 (1.18–1.32)** \\ \hline Exanthemas & 1499 (1.81\%) & 147 (0.53\%) & **0.31 (0.27–0.36)** & 1352 (2.45\%) & **1.32 (1.30–1.34)** \\ \hline Exposure to chemicals & 62 (0.07\%) & 19 (0.07\%) & 0.98 (0.67–1.42) & 43 (0.08\%) & 1.01 (0.86–1.19) \\ \hline Gastrointestinal bleeding & 727 (0.88\%) & 436 (1.59\%) & **1.93 (1.81–2.05)** & 291 (0.53\%) & **0.58 (0.53–0.64)** \\ \hline Wounds & 1657 (2\%) & 174 (0.63\%) & **0.33 (0.29–0.38)** & 1483 (2.68\%) & **1.31 (1.29–1.33)** \\ \hline Local infections and abscesses & 3006 (3.63\%) & 494 (1.8\%) & **0.52 (0.48–0.56)** & 2512 (4.55\%) & **1.23 (1.21–1.25)** \\ \hline Trunk injuries & 631 (0.76\%) & 130 (0.47\%) & **0.66 (0.56–0.76)** & 501 (0.91\%) & **1.16 (1.11–1.20)** \\ \hline Bites and stings & 110 (0.13\%) & 12 (0.04\%) & **0.35 (0.20–0.59)** & 98 (0.18\%) & **1.30 (1.22–1.39)** \\ \hline Palpitations & 603 (0.73\%) & 275 (1\%) & **1.46 (1.34–1.59)** & 328 (0.59\%) & **0.79 (0.74–0.85)** \\ \hline Polytrauma & 124 (0.15\%) & 51 (0.19\%) & **1.31 (1.06–1.62)** & 73 (0.13\%) & **0.86 (0.74–0.99)** \\ \hline Ear problems & 1033 (1.25\%) & 152 (0.55\%) & **0.47 (0.40–0.54)** & 881 (1.59\%) & **1.25 (1.21–1.28)** \\ \hline Dental problems & 881 (1.06\%) & 80 (0.29 Next, we performed a detailed analysis of the times and found that the group with a LOS > 4 h had accumulated delays from their first contact (when patients arrive at the hospital and provide their administrative data).