Meta-Analysis: Overweight, Obesity, and Parkinson's Disease

Table 3

Fail-safe numbers of all groups for studies with no heterogeneity.

Group	Number of studies	Fail-safe number
		𝛼=0.05	𝛼=0.01
A1	3	10.984	3.928
A2	3	−0.038	−1.533
A3	3	2.748	−0.152
B1	4	25.435	10.583
B2	4	64.381	29.878
B3	4	15.047	5.436

A1: BMI ≥ 30 versus BMI < 25; A2: 25 ≤ BMI < 30 versus BMI < 25; A3: BMI ≥ 30 versus 25 ≤ BMI < 30; B1: BMI ≥ 30 versus BMI < 25; B2: 25 ≤ BMI < 30 versus BMI < 25; B3: BMI ≥ 30 versus 25 ≤ BMI < 30. BMI indicates body mass index (kg/m²).