Table 2.

A ranked list in descending order of the fixed effects that were found to be significant ($p<0.05$) in mixed effects model B for abdomen-pelvis and chest exams. For discrete features with sublevels, only the sublevel with largest $t$-value magnitude is shown. Features that appear toward the top of the list are more impactful on the corresponding outcome.

	Abdomen-pelvis			Chest
	Noise	Resolution	Dose	Noise	Resolution	Dose
1	Slice thickness	Scanner model	Eff. diameter	Slice thickness	Kernel	Eff. diameter
2	Patient sex	Recon. FOV	mAs	Patient sex	Recon. FOV	mAs
3	AP. mis-centering	AP. mis-centering	kVp	Recon. FOV	AP. mis-centering	kVp
4	Recon. FOV	Patient sex	Scanner model	AP. mis-centering	Scanner model	Scanner model
5	mAs	Kernel	Bowtie filter	Kernel	Slice thickness	Total collimation
6	kVp	mAs	AP. mis-centering	kVp	Pitch	Recon. FOV
7	Lat. mis-centering	kVp	Recon. FOV	Scanner model	Eff. diameter	Patient sex
8	Eff. diameter	Total collimation	Total collimation	Eff. diameter		Bowtie filter
9	Kernel	Slice thickness	Slice thickness	mAs		AP. mis-centering
10	Rotation time		Kernel	Rotation time		Lat. mis-centering
11	Scanner model		Rotation time	Lat. mis-centering		Pitch
12	Total collimation		Patient sex	Total collimation		Kernel
13			Pitch	Pitch