Table 2. Correlation coefficients of serum GDF11 and BMD.

BMD in different bone	GDF11
	Unadjusted	Age and BMI adjusted
Lumbar spine BMD	−0.271*	−0.153*
Total hip BMD	−0.319*	−0.152*
Femoral neck BMD	−0.272*	−0.152*

BMD, bone mineral density; BMI, body mass index; GDF11, growth differentiation factor 11.

Pearson’s correlation coefficients and partial correlation coefficients after adjusting for age and BMI are presented.

*P<0.05.