Table 1: Study group.
| Age (years) | Diameter of the esophagus (cm) | Gender | Area of PGP 9.5-IR nerve fibers (µm2)* | |
| Non-infected individuals | ||||
| E2 | 76 | 1.6 | M | 287 |
| E5 | 54 | 1.4 | M | 229 |
| E17 | 79 | 1.6 | M | 196 |
| HE12-94 | 34 | 1.5 | M | 372 |
| HE83-93 | 85 | 1.2 | M | 328 |
| HE93-93 | 47 | 1.3 | M | 262 |
| Infected individuals without megaesophagus | ||||
| E3 | 49 | 1.1 | F | 325 |
| E9 | 47 | 1.3 | F | 243 |
| E14 | 70 | 1.7 | M | 250 |
| E4 | 61 | 1.6 | M | 176 |
| E7 | 66 | 1.4 | M | 195 |
| E15 | 40 | 1.2 | M | 197 |
| Infected individuals with megaesophagus | ||||
| E12 | 57 | 2.7 | M | 16 |
| HE30-00 | 52 | 4.5 | M | 20 |
| HE45-93 | 53 | 4.1 | M | 18 |
| HE46-01 | 43 | 3.0 | F | 24 |
| ML10-86 | 43 | 2.6 | M | 23 |
| HE71-00 | 67 | 2.9 | M | 17 |
*Analyzed by Nascimento, et al. [5].
Abbreviations: F: Female; M: Male.