. 2021 Mar 4;36(1):32–38. doi: 10.4103/ijnm.IJNM_112_20

Table 6.

Regression analysis

Regression Equation
Individual ED (mSv)=–2.35 –0.027 ˣHt (cm) +0.014 ˣWt (Kg)
+0.148 ˣScan range (cm) +0.019 ˣTube current (mA) -0.035
ˣCTDIvol (mGy) +0.002 ˣDLP (mGy.cm)

Model summary (ɑ=0.05)

S	R²	R² (adjusted)	R² (pred)

0.782234	98.79%	98.76%	98.66%

Analysis of variance

Source	Adjusted MS	F	P

Regression	1890.33	3089.33	0.000
Height (cm)	11.86	19.39	0.000
Weight (kg)	6.21	10.15	0.002
Scan range (cm)	213.05	348.18	0.000
Tube current (mA)	18.39	30.05	0.000
CTDIvol (mGy)	5.69	9.31	0.003
DLP (mGy.cm)	16.16	26.41	0.000
Error	0.61
Lack-of-fit	0.61
Pure error	0.00
Total

MS: Mean square, DLP: Dose-length product