Table 2 Demographic characteristics, scanner dose and apnea duration in FDCT and LDCT groups

Total examinations

269

194

Period

April–Dec 2020

Dec 2020–March 2021

Age

P = 0.8729^a

Median (IQR)

55 (30)

56 (20)

[min–max]

[14–92]

[20–96]

Sex

P = 0.0357^b

Male

126 (46.8%)

110 (56.7%)

Female

143 (53.2%)

84 (43.3%)

Weight

P = 0.2501^a

Mean (SD)

85 (15)

79 (14)

[min–max]

[60–112]

[59–110]

DLP (mGy*cm)

P < 0.0001^a

Median (IQR)

341.1 [204.1]

30.8 (3.9)

[min–max]

[72.6–975.6]

[8.4–71.1]

CTDI

P < 0.0001^a

Median (IQR)

11.3 (5.5)

0.9 (0)

[min–max]

[0.4–29.8]

[0.3–2.6]

Duration of apnea

P < 0.0001^a

Median (IQR)

13.29 (4.9)

8.27 (1.2)

[min–max]

[7.02–37.26]

[6.71–15.78]