TABLE 3.
RESULT OF UNIVARIATE ANALYSIS INVESTIGATING ASSOCIATION BETWEEN CATEGORICAL VARIABLES AND PNEUMOTHORAX PRESENCE AND NUMBERS
| Pneumothorax
|
No. of Pneumothoraces
|
|||||||
|---|---|---|---|---|---|---|---|---|
| Variable | No | Yes | p Value | 0 | 1 | 2 | 3+ | p Value |
| Sex | ||||||||
| M | 81 | 20 | 0.14 | 81 | 6 | 7 | 7 | 0.83 |
| F | 69 | 28 | (C) | 69 | 11 | 12 | 5 | (C-A) |
| No. of fibrofolliculomas | ||||||||
| < 10 | 9 | 5 | 1.00 | 9 | 1 | 2 | 2 | |
| 10–100 | 9 | 14 | 59 | 4 | 6 | 4 | 0.83 | |
| > 100 | 82 | 29 | (C-A) | 82 | 12 | 11 | 6 | (J-T) |
| Kidney tumors | ||||||||
| Yes | 119 | 34 | 0.22 | 119 | 14 | 12 | 8 | 0.13 |
| No | 31 | 14 | (C) | 31 | 3 | 7 | 4 | (C-A) |
| Smoking history | ||||||||
| Yes | 59 | 16 | 0.46 | 59 | 5 | 5 | 6 | 0.87 |
| No | 91 | 32 | (C) | 91 | 12 | 14 | 6 | (C-A) |
| Smoking status | ||||||||
| Nonsmoker | 91 | 32 | 91 | 12 | 14 | 6 | ||
| Quit > 10 yr ago | 21 | 8 | 21 | 2 | 3 | 3 | 0.47 | |
| Quit < 10 yr ago | 9 | 2 | 0.33 | 9 | 0 | 1 | 1 | (J-T) |
| Current | 24 | 5 | (C-A) | 24 | 3 | 0 | 2 | |
| Lung cysts | ||||||||
| Yes | 129 | 48 | 0.006 | 129 | 17 | 19 | 12 | 0.012 |
| No | 21 | 0 | (C) | 21 | 0 | 0 | 0 | (C-A) |
Definition of abbreviations: C = chi-square test; C-A = exact Cochran-Armitage test; J-T = exact Jonckheere-Terpstra test.