. 2019 Jan 1;21(4):400–407. doi: 10.4103/aja.aja_105_18

Table 1.

The correlations between the level of serum or seminal plasma 25-hydroxyvitamin D and sperm parameter values (n=222)

Variables	Serum 25(OH)D level^a		Seminal plasma 25(OH)D level^a

	Correlation	P	Correlation	P
Age (year)^a	−0.034	0.688	−0.037	0.640
BMI (kg m⁻²)	0.134	0.092	0.101	0.163
Duration of abstinence (day)^a	0.066	0.407	−0.028	0.699
Semen volume (ml)^a	0.229	0.004**	0.271	0**
Sperm concentration (×10⁶ ml⁻¹)^a	−0.020	0.806	−0.174	0.016*
Sperm motility (%)	−0.015	0.853	0.124	0.087
Progressive motile spermatozoa (%)	−0.025	0.757	0.104	0.150
VSL (µm s⁻¹)	−0.039	0.624	0.218	0.002**
VCL (µm s⁻¹)	−0.059	0.457	0.208	0.004**
VAP (µm s⁻¹)	−0.060	0.454	0.222	0.002**
Morphologically normal (%)^a	0.039	0.633	0.020	0.799
Intact acrosomes (%)^a	0.001	0.992	−0.010	0.896
Serum AMH (ng ml⁻¹)^a	0.102	0.204	0.045	0.617
Seminal plasma AMH (ng ml⁻¹)^a	0.146	0.169	−0.088	0.429
Serum INHB (pg ml⁻¹)^a	0.171	0.099	0.073	0.500
Seminal plasma INHB (pg ml⁻¹)^a	0.081	0.443	0.171	0.116
Seminal plasma fructose (mmol l⁻¹)	0.257	0.002**	−0.004	0.963
Seminal plasma a-glucosidase (U l⁻¹)	−0.132	0.116	−0.108	0.193
Seminal plasma 25(OH)D (ng ml^-1)^a	0.079	0.372	-	-

^aIndicates that the normality test revealed a lack of conformity to a normal distribution. *P<0.05 and **P<0.01 for bilateral test. VSL: straight-line velocity; VCL: curvilinear velocity; VAP: average path velocity; AMH: anti-Müllerian hormone; INHB: inhibin B; 25(OH)D: 25-hydroxyvitamin D; BMI: body mass index