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Article Category: Brief communication (Original)
Publicado en línea: 31 ene 2017
Páginas: 613 - 623
DOI: https://doi.org/10.5372/1905-7415.0905.431
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© 2015 Nattinee Leelakanok, Nitra Piyavisetpat
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
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Distribution of air trapping, bronchiectasis and bronchial wall thickening in each group
| Parameter | Lobe | Age group 1 | Age group 2 | Age group 3 | Total number in each lobe (%) |
|---|---|---|---|---|---|
| Number of air trapping | RUL | 0 | 1 | 5 | 6 (8) |
| RML | 0 | 1 | 1 | 2 (3) | |
| RLL | 5 | 6 | 17 | 28 (39) | |
| LUL | 0 | 1 | 5 | 6 (8) | |
| Lingular | 0 | 1 | 1 | 2 (3) | |
| LLL | 4 | 7 | 17 | 28 (39) | |
| Bronchiectasis | RUL | 0 | 1 | 2 | 3 (13) |
| RML | 0 | 4 | 1 | 5 (22) | |
| RLL | 0 | 2 | 3 | 5 (22) | |
| LUL | 0 | 1 | 0 | 1 (4) | |
| Lingular | 0 | 1 | 0 | 1 (4) | |
| LLL | 0 | 2 | 4 | 6 (26) | |
| Bronchial wall thickening | RUL | 0 | 2 | 2 | 4 (15) |
| RML | 0 | 2 | 2 | 4 (15) | |
| RLL | 0 | 2 | 5 | 7 (26) | |
| LUL | 0 | 2 | 2 | 4 (15) | |
| Lingular | 0 | 0 | 0 | 0 (0) | |
| LLL | 0 | 2 | 6 | 8 (30) |
Correlation between each outcome and age group
| Parameters | Age ≤56 | Age >56 | |
|---|---|---|---|
| Number | 37 | 23 | 0.09 |
| Bronchiectasis | 3 | 7 | 0.04 |
| Bronchial wall thickening | 2 | 7 | 0.02 |
Comparison of air trapping in lower lobes and other lobes in all participants
| Air trapping | Other lobes | LLL+ RLL | Pearson chi-square test, LLL = left lower lobe, RLL = right lower lobe, |
|---|---|---|---|
| Positive | 16 | 56 | <0.01 |
| Negative | 224 | 64 |
Distribution of bronchiectasis in total participants
| RUL | RML | RLL | LUL | Lingular | LLL | |
|---|---|---|---|---|---|---|
| Positive | 3 | 5 | 5 | 1 | 1 | 6 |
| Negative | 57 | 55 | 55 | 59 | 59 | 54 |
Distribution of bronchial wall thickening in total participants
| RUL | RML | RLL | LUL | Lingular | LLL | |
|---|---|---|---|---|---|---|
| Positive | 4 | 4 | 7 | 4 | 0 | 8 |
| Negative | 56 | 56 | 53 | 56 | 60 | 52 |
Demographic data
| Group 1 | Group 2 | Group 3 | Pearson chi-square test | |
|---|---|---|---|---|
| Range (age) | 20-40 | 41-60 | ≥6 1 | |
| Median | 32 | 51 | 64.5 | |
| Mean (Standard deviation) | 30.5 (6.1) | 50.4 (4.9) | 66.7 (5.7) | |
| Number of participants | 20 | 20 | 20 | |
| Male (%) | 17 (85) | 17 (85) | 8 (40) | 0.01 |
| <0.05 | <0.05 | 0.50 | ||
| Smoking | 4 | 10 | 5 | 0.09 |
| Smoking history (Pack-years) Data are medians, with ranges in parentheses | 0 (0-2.5) | 0.05 (0-40) | 0 (0-60) |
Sensitivity and specificity of the coordinate of the ROC curve at age 56
| Bronchiectasis | Bronchial wall thickening | |
|---|---|---|
| Sensitivity | 70% | 78% |
| Specificity | 68% | 69% |
Degree of air trapping in each age group
| Air trapping | Age group 1 | Age group 2 | Age group 3 | Total | Pearson chi-square test |
|---|---|---|---|---|---|
| Lobular | 3 | 4 | 5 | 12 | 0.11 |
| Geographic | 2 | 2 | 8 | 12 | 0.09 |
| Extensive | 0 | 1 | 5 | 6 | 0.02 |
Correlation between each outcome and smoking status in all participants
| CT imaging outcome | Smoking | No smoking | |
|---|---|---|---|
| Air trapping present | 10 | 20 | >0.10 |
| Air trapping absent | 9 | 21 | |
| Reticulation present | 1 | 0 | >0.10 |
| Reticulation absent | 18 | 41 | |
| Bronchiectasis present | 3 | 7 | >0.10 |
| Bronchiectasis absent | 16 | 34 | |
| Bronchial wall thickening present | 3 | 6 | >0.10 |
| Bronchial wall thickening absent | 16 | 35 |
Degree of bronchiectasis in each age group
| Degree | Age group 1 | Age group 2 | Age group 3 | Total |
|---|---|---|---|---|
| Cylindrical | 0 | 4 | 6 | 10 |
| Varicose | 0 | 0 | 0 | 0 |
| Cystic | 0 | 0 | 0 | 0 |