Table 4

Statistical summary, Figure 4^*

Figure	Outcome	Independent variable	Population	Nonlinear association

				F	df	p value	Power
4B	Mean rSUV, left sgACC	PCA Pearson r-to-z scores	All	3.77	1.755	0.044	0.938
4C	Mean rSUV, left sgACC	PCA Pearson r-to-z scores	Patients with MDD	12.30	0.944	0.015	0.744
4D	Mean rSUV, left sgACC	PCA Pearson r-to-z scores	Controls	4.46	2.266	0.035	0.815

df = degrees of freedom; MDD = major depressive disorder; PCA = principal component analysis; rSUV = relative standard uptake value; sgACC = subgenual anterior cingulate cortex.
↵* Nonlinear association between the left sgACC mean rSUV and Pearson’s r-to-z scores (PCA-derived) for each population.