Table II.

Carnitine Profiles in Individuals with PWS, EMO, and sibling controls

	N	Total Carnitine (NL range: 35–90 umol/L)		Free Carnitine (NL range: 25–55 umol/L)		Carnitine Esters (NL range: 4–36 umol/L)		Ester/free Ratio (NL range: 0.1–1.0)
p-value (3-way)		0.44		0.084		0.043*		0.02*
		Mean	Std Dev	Mean	Std Dev	Mean	Std Dev	Mean	Std Dev
PWS	40	43.4	9.8	29.7	9.3	13.7	6.7	0.52	0.45
Normal weight Controls	35	42.6	8.1	32.8	6.9	9.7	5.6	0.31	0.20
EMO	11	46.9	12.1	35.6	7.9	11.2	6.5	0.31	0.15

Pairwise P-values for carnitine esters: PWS vs. controls: p = 0.013 PWS vs. EMO: p=0.25 Controls vs. EMO: p=0.52

Pairwise P-values for esterified to free carnitine ratio: PWS vs. controls: p = 0.0096 PWS vs. EMO: p=0.081 Controls vs. EMO: p=0.97