Table 1.

The prevalence of paratracheal air cysts according to the decades of life

Age (years)	Number of subjects	PTACs presence	Prevalence (%)
0–9	27	1	3.7
10–19	81	10	12.3
20–29	158	16	10.1
30–39	154	13	8.4
40–49	140	12	8.6
50–59	150	14	9.3
60–69	151	8	5.3
70–79	118	5	4.2
80–89	38	2	5.3
90–99	10	1	10
Total	1027	82	8

PTACs, paratracheal air cysts.