Among the 301 patients, 41.8% were classified as mild, 36.5% cases classified as moderate, and 21.5% classified as severe disease. The biochemical profiles in men and women also showed differences between them. According to the chi-squared test, there is not a relationship between the COVID-19 severity score and the presence of conjunctivitis (P = 0.17). However, in the analysis of conjunctivitis patients by clinical severity, there were statistically significant differences by sex (Table 4). Conjunctivitis was more frequent in males with moderate clinical severity and in women classified as clinically mild. Table 4 Differences in clinical severity by gender among all patients and those with conjunctivitis All patients (N = 301) Variable Male Female P value Severity:   1 69 (38.1%) 57 (47.5%) 0.06*   2 65 (35.9%) 45 (37.5%)   3 47 (25.9%) 18 (15%) Conjunctivitis (N = 35) Male Female P Severity:   1 1 (4.7%) 9 (64.2%) 0.001**   2 12 (57.1%) 3 (21.4%)   3 8 (38.1%) 2 (14.2%) *Chi-squared test **Fisher’s exact test