Table 3. Jackknife sensitivity analysis.

All studies but …	A	B	C	D	E	F	G	H	I	J
Kwak et al.25	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Wen et al.19	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Possin et al.23	Yes	Yes	Yes	No	Yes	Yes	Yes	No	Yes	No
Skidmore et al.13	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Zhang et al.24	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Hou, et al.26	Yes	Yes	No	No	Yes	No	No	Yes	No	No
Luo et al.21	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Hu et al.17	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Chen et al.a 15	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Chen et al.b 15	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Luo et al.c 18	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
Luo et al.d 18	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
Luo et al.e 18	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
Xiang et al.27	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Total	14 out of 14	14 out of 14	12 out of 14	12 out of 14	14 out of 14	13 out of 14	13 out of 14	10 out of 14	13 out of 14	12 out of 14

Key: A, Right inferior temporal/middle temporal/fusiform/parahippocampal gyri; B, Right inferior parietal gyrus; C, Brainstem (pons and midbrain); D, Right orbitofrontal cortex; E, Left/Right cuneus cortices; F, Left/Right supplementary motor areas; G, Left putamen; H, Left cuneus cortex; I, Left inferior parietal gyrus; J, Left lateral premotor cortex; Yes, the region reported; No, the region not reported; ^apostural instability/gait difficulty subtype of PD; ^btremor-dominant subtype of PD; ^cPD patients at H&Y stage I; ^dPD patients at H&Y stage II; ^ePD patients at H&Y stage III.