Lymphatic plastic bronchitis and primary chylothorax: A study based on computed tomography lymphangiography

Table 1 Main demographic and clinical variables of 71 patients with lymphatic plastic bronchitis or primary chylothorax, n (%)/ mean ± SD/25^th-75^th percentiles

Characteristic or symptoms	Group A (n = 20)	Group B (n = 41)	Group C (n = 10)	P value
Ages (yr)	33.1 ± 17.3	34.0 ± 19.0	48.3 ± 11.7	0.060
Gender				0.472
Male	11	16	5
Female	9	25	5
Course (m)	36.0 (6.5-129.0)a	6 (2.5-20.0)a	33 (5-108)	0.005
Cough	20 (100)a	9 (22.0)a,b	9 (90.0)b	< 0.001
Sputum	20 (100)a	0 (0)a,b	10 (100)b	< 0.001
Chest tightness	12 (60.0)	29 (70.7)	8 (80.0)	0.501
Fever	5 (25.0)	4 (9.8)	0 (0)	0.125
Hemoptysis	4 (20.0)a	0 (0)a	0 (0)	0.008

^aP < 0.05, indicates a statistically significant difference between group A and group B.

^bP < 0.01, indicates a statistically significant difference between group B and group C.

Unless otherwise indicated, data are number of patients.