Could procollagen type I N-terminal propeptide (PINP) and bone alkaline phosphatase (B-ALP) be valid alternative diagnostic markers to dual X-ray absorptiometry (DEXA) in elderly females with osteoporosis? An Egyptian radiological and laboratory monocentric study

Egyptian Rheumatology and Rehabilitation

Table 2 Correlation between estrogen with progesterone and different parameters

		Total sample (n = 168)		Total patient (n = 108)		Osteopenia (n = 48)		Osteoporosis (n = 60)
		r	p	r	p	r	p	r	p
Estrogen (pg/ml) vs.	BMD-F (g/cm²)	− 0.106	0.172	− 0.165	0.088	0.484	< 0.001^*	− 0.022	0.866
	BMD-S (g/cm²)	− 0.100	0.196	− 0.139	0.151	0.329	0.022^*	0.056	0.671
	PINP (pg/ml)	0.050	0.523	− 0.026	0.787	0.147	0.317	0.039	0.768
	B-ALP (ng/ml)	− 0.005	0.945	− 0.040	0.679	− 0.030	0.841	− 0.106	0.421
	ECOS 16							− 0.108	0.412
Progesterone (nmol/L) vs.	BMD-F (g/cm²)	0.314	< 0.001^*	− 0.185	0.055	0.004	0.981	0.083	0.529
	BMD-S (g/cm²)	0.360	< 0.001^*	− 0.201	0.037^*	− 0.134	0.363	0.067	0.612
	PINP (pg/ml)	0.251	0.001^*	− 0.053	0.588	0.152	0.303	0.016	0.903
	B-ALP (ng/ml)	− 0.229	0.003^*	− 0.009	0.922	− 0.106	0.475	− 0.048	0.717
	ECOS 16							− 0.043	0.747