## 3 Results
The 800 Eos/uL cut-off point only detected differences in FEV1/FVC (\(p\) 0.032) and FEV1/FVC (\(p\) 0.007). Finally, when analyzing patients with asthma, asthma traits were also studied. Having lower eosinophil counts decreases the risk and prevalence of persistent asthma (150 \(p\) 0.028, RR 0.749, OR 0.651; 300 \(p\) 0.001, RR0.649, OR 0.499; 500 \(p\) 0.001, RR 0.657, OR 0.491) and the amount of patients whose spirometry was performed during their asthma symptomatic period (150 \(p\) 0.015, RR 0.844, OR 0.644; 300 \(p\) 0.003, RR 0.843, OR 0.601; 500 \(p\) 0.009, RR 0.829, OR 0.545; 800 \(p\) 0.039, RR 0.742, OR 0.292). No other asthma traits were modified by eosinophil counts. Table 1 Data are presented as \(n\) (%) and mean \(\pm\) standard deviation, FEV1: Forced expiratory volume, FVC: Forced vital capacity, FEF 25-75: Forced expiratory flow between 25% and 75% of the spirometry, + Broncholidation: Variation in FEV1 \(>\) 12% and \(>\)200 mL in broncholidation test, * Broncholidation: Variation in FVC \(>\) 10% and/or variation in FEF 25-75 \(>\) 30% with a variation in FEV1 \(<\) 12% and/or \(<\)200 mL in broncholidation test, \(-\) Broncholidation: Variation in FEV1 \(<\) 12% and/or \(<\)200 mL in FVC \(<\) 10% and variation in FEF 25-75 \(<\) 30%, %: Percentage. \begin{table}
\begin{tabular}{c c c c c} \hline \hline  & **\textless{}300 Eosinophils** & **\textgreater{}300 Eosinophils** & \(p\) & RR & OR \\ \hline Simple size & 501 & 232 & - & - & - \\ Age & 39.50 \(\pm\) 12.96 & 37.91 \(\pm\) 13.00 & - & - & - \\ Men & 155 (31\%) & 85 (37\%) & - & - & - \\ Women & 346 (69\%) & 147 (63\%) & - & - & - \\ BMI & 26.74 \(\pm\) 5.05 & 27.12 \(\pm\) 5.66 & - & - & - \\ FEV 1 Volume & 3.15 \(\pm\) 0.83 & 3.10 \(\pm\) 0.80 & - & - & - \\ FEV 1 \% & 100.25 \(\pm\) 15.03 & 95.74 \(\pm\) 15.06 & 0.001 & - & - \\ FEV 1 Zscore & \(-\)0.72 \(\pm\) 1.48 & \(-\)0.92 \(\pm\) 1.37 & - & - & - \\ FVC Volume & 3.96 \(\pm\) 1.02 & 4.00 \(\pm\) 0.99 & - & - & - \\ FVC\% & 106.80 \(\pm\) 14.02 & 104.57 \(\pm\) 12.51 & 0.039 & - & - \\ FVC Zscore & \(-\)0.54 \(\pm\) 1.47 & \(-\)0.53 \(\pm\) 1.40 & - & - & - \\ FEV 1/FVC & 79.75 \(\pm\) 7.44 & 77.54 \(\pm\) 8.09 & 0.001 & - & - \\ FEV 1/FVC Zscore & \(-\)0.36 \(\pm\) 1.06 & \(-\)0.72 \(\pm\) 1.15 & 0.001 & - & - \\ FEF 25–75 Volume & 3.11 \(\pm\) 1.16 & 2.86 \(\pm\) 1.12 & 0.007 & - & - \\ FEF 25–75\% & 80.37 \(\pm\) 25.64 & 72.15 \(\pm\) 25.10 & 0.001 & - & - \\ + Broncholidation & 41 (11\%) & 31 (17\%) & - & - & - \\ * Broncholidation & 39 (11\%) & 19 (11\%) & - & - & - \\  – Broncholidation & 285 (78\%) & 130 (72\%) & - & - & - \\ Asthma diagnosis & - & - & - & - & - \\ Asthma onset prior to 12 years old & 65 (13\%) & 29 (13\%) & - & - & - \\ Asthma onset prior to 40 years old & 384 (77\%) & 177 (76\%) & - & - & - \\ Allergic asthma & 394 (79\%) & 176 (76\%) & - & - & - \\ Asthma in symptomatic period & 304 (61\%) & 167 (72\%) & 0.003 & 0.843 & 0.601 \\ Persistent asthma & 150 (30\%) & 107 (46\%) & 0.001 & 0.649 & 0.499 \\ Current asthma symptoms & 159 (32\%) & 86 (37\%) & - & - & - \\ Rhinitis & 475 (95\%) & 224 (97\%) & - & - & - \\ Atopy & 446 (89\%) & 222 (96\%) & 0.003 & 0.930 & 0.365 \\ Food allergy & 76 (15\%) & 31 (13\%) & - & - & - \\ Drug allergy & 35 (7\%) & 19 (8\%) & - & - & - \\ Contact dermatitis & 18 (4\%) & 6 (3\%) & - & - & - \\ Other allergies & 11 (2\%) & 2 (1\%) & - & - & - \\ FeNO & 28.70 (33.20) & 51.45 (66.73) & 0.001 & - & - \\ (ppb) & & & & & \\ Eosinophil counts & 200 (200) & 500 (300) & 0.001 & - & - \\ (Eos/uL) & & & & & \\ Total IgE & 135.00 (281.55) & 190.00 (403.5) & 0.001 & - & - \\ (kU/L) & & & & & \\ Comorbidities & 66 (13\%) & 34 (15\%) & - & - & - \\ Atopic dermatitis & 24 (4\%) & 10 (4\%) & - & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Clinical characteristics of asthma patients over 18 years old.