TABLE 1.

Demographic characteristics of 76 participants with early Lyme disease and 26 healthy controls

Characteristic	Lyme disease patientsa							Healthy controls (n = 26)	P value for all Lyme disease patients vs controlsb
	PTLDS (n = 11)	Symptoms only (n = 29)	Return to health (n = 36)	Total (n = 76)	P valueb
					P vs S	P vs R	S vs R
% participants of female sex	72.73	48.28	41.67	48.68	0.29	0.07	0.59	53.85	0.65
Age (yr)					0.04	0.24	0.29		0.17
Median	43	54	53	53				57
IQRc	29–53	46–66	34–62	38–63				46–66
Range	20–64	20–75	20–77	20–77				22–73
% non-Hispanic white participants	81.82	96.55	94.44	93.42	0.18	0.23	1.00	88.46	0.42

^aLyme disease participants were grouped by clinical outcome (PTLDS [P], symptoms only [S], and return to health [R]) using a previously published definition incorporating both persistent symptoms and functional impact (25).

^bSignificance was determined by the chi-square or Fisher's exact test for female sex and non-Hispanic white and the Wilcoxon rank sum test for age.

^cIQR, interquartile range.