TABLE 3. Plasma homovanillic acid studies in schizophrenia: baseline studies a

Reference Subjects(N) Weeks off drug Result
Pickar et al. (46) SCZ (8) 2 r = 0.82
Davis et al. (61) SCZ (18) 4 r = 0.66
Pickar et al. (56) SCZ (11) 5 r = 0.81
Davidson and Davis (62) SCZ (14), NC (14) 3 pHVA SCZ < NC
Kirch et al. (63) SCZ (22) 6 ns
Maas et al. (96) SCZ (23) 2 r = 0.38
Sharma et al. (47) SCZ (11)

PSYCHOT (6)

2.5 r = -0.08
Van Putten et al. (53) SCZ (22) 4 ns
Markianos et al. (97) SCZ (0) Neuroleptic-naive ns ns

aAbbreviations are defined in footnote a of Table 1.

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published 2000