Characteristics and vascularity of non-asthmatic subjects
| Case no | Sex | Age (years) | No vessels/mm2 | Vascular area (%) |
| 21 | M | 62 | 183 | 3.84 |
| 22 | M | 69 | 150 | 6.72 |
| 23 | M | 48 | 239 | 8.48 |
| 24 | M | 77 | 160 | 11.12 |
| 25 | M | 74 | 190 | 10.72 |
| 26 | M | 72 | 159 | 5.20 |
| 27 | M | 23 | 177 | 4.96 |
| 28 | M | 64 | 188 | 8.72 |
| 29 | M | 67 | 105 | 5.44 |
| 30 | M | 70 | 178 | 8.72 |
| 31 | M | 71 | 152 | 9.72 |
| 32 | F | 70 | 121 | 5.76 |
| 33 | M | 51 | 176 | 4.24 |
| 34 | M | 67 | 179 | 6.08 |
| 35 | M | 56 | 196 | 6.96 |
| 36 | M | 45 | 197 | 7.68 |
| 37 | M | 54 | 164 | 6.64 |
| 38 | M | 58 | 216 | 7.44 |
| 39 | F | 42 | 170 | 2.96 |
| 40 | M | 66 | 141 | 4.96 |
| Total | 3441 | |||
| Mean (SD) | 172.05 (30.58) | 6.81 (2.25) |