Table 1.

Gender of Patients in Three Studies of Antibiotic Treatment for Chronic Lyme Disease and in Three Controlled Treatment Trials of Post-Lyme Disease Syndrome

First author	Reference Number	Time period of study	Year published	No. of females	Number of males	Female/Male ratio	Age of subjects in years	Comment
Chronic Lyme Disease
Donta	14	1988–1995	1997	154	84	1.8	Mean 39	Gender not given for 39 subjects
Fallon	15	1993–?	1999	16	7	2.3	Mean 42.7
Donta	16	1992–1997	2003	168	61	2.8	Median 41	Gender not given for 6 subjects
Total				338	152	2.2
Post Lyme Disease Syndrome
Klempner	2	1997–2000	2001	33	45	0.7	Mean 54–55	All subjects were seropositivea
Klempner	2	1997–2000	2001	28	23	1.2	Mean 51–52	All subjects were seronegativea
Krupp	3	1995–1997	2003	29	26	1.1	Mean 47–48	67% were seropositivea
Total				90	94	0.96