Table 2.
Demographic characteristics of patients on admission.
| Characteristics | Patients (n = 380) |
|---|---|
| Age | |
| Median—years | 18.0 (17.0–35.0) |
| 3–14 | 26 (6.8) |
| 15–49 | 299 (78.7) |
| 50–64 | 35 (9.2) |
| ≥65 | 20 (5.3) |
| Female sex | 219 (57.6) |
| Occupation | |
| Student | 247 (65.0) |
| Agricultural worker | 95 (25.0) |
| Teacher or employee | 31 (8.2) |
| Child | 7 (1.8) |
| Smoking history | 10 (2.6) |
| Alcohol drinking history | 5 (1.3) |
| Coexisting disorder (condition) | |
| Any | 45 (11.8) |
| Hypertension | 15 (3.9) |
| Diabetes | 5 (1.3) |
| Hepatitis B infection† | 5 (1.3) |
| Coronary heart disease | 4 (1.1) |
| Thyroid disease | 3 (0.8) |
| Cerebrovascular disease | 3 (0.8) |
| Cancer (resected) | 2 (0.5) |
| Hepatitis C infection‡ | 1 (0.3) |
| Chronic bronchitis | 1 (0.3) |
| Bronchiectasis | 1 (0.3) |
| Epilepsia | 1 (0.3) |
| Anaphylactoid purpura | 1 (0.3) |
| Pregnancy | 1 (0.3) |
| Hearing loss | 1 (0.3) |
| Arthritis | 1 (0.3) |
| Mania | 1 (0.3) |
| Down’s syndrome | 1 (0.3) |
| Myasthenia gravis | 1 (0.3) |
| Urticaria | 1 (0.3) |
| Renal calculus | 1 (0.3) |
Data are presented as the median (interquartile range) or n (%).
†
The presence of hepatitis B infection was defined as a positive result for hepatitis B surface antigen with or without elevated levels of alanine or aspartate aminotransferase.
‡
The presence of hepatitis C infection was defined as a positive result for anti-hepatitis C virus (HCV) antibody; this patient refused to test for the HCV RNA level.