Blood levels of brain-derived neurotrophic factor (BDNF) in systemic lupus erythematous (SLE): a systematic review and meta-analysis

Table 3 Meta-regression of BDNF levels in SLE patients and healthy controls

Moderator	No. of comparisons	No. of subjects		Meta-regression			R² Analog (proportion of variance explained) (%)
Moderator	No. of comparisons	IHD	HC	Slope	95% CI	P value	R² Analog (proportion of variance explained) (%)
Sample size	8	658	323	0.0099	− 0.0081; 0.0278	0.2818	26.89
Age (mean, years)	8	658	323	0.1556	0.0339; 0.2772	0.0122	49.96
NOS score	8	658	323	− 0.9676	− 2.4017; 0.4665	0.1860	18.80
Sex (male, %)	7	625	285	0.0836	− 0.1464; 0.3135	0.4762	16.53

ISSN: 2523-3106