Association between serum vitamin A levels and premature ovarian insufficiency: a case–control, cross-sectional survey study

Table 3 Correlation of POI with confounding variables^a

Confounders	POI	Age	BMI	Annual household income	Education	FSH (IU/L)	LH (IU/L)	E₂ (pmol/L)	AMH (ng/mL)	Vitamin A (µg/L)	TC (mmol/L)
POI
Age	0.06
BMI	0.10	0.08
Annual household income	-0.46^**	0.10	-0.13
Education	-0.46^**	-0.15	-0.11	0.50^*
FSH (IU/L)	0.85^**	0.22^*	-0.04	-0.32^**	-0.39^**
LH (IU/L)	0.85^**	0.11	-0.04	-0.39^**	-0.39^**	0.82^**
E₂ (pmol/L)	0.09	0.08	-0.08	-0.12	-0.01	0.04	0.00
AMH (ng/mL)	-0.86^**	-0.26^**	-0.12	0.33^**	0.40^**	-0.84^**	-0.71^*	-0.14
Vitamin A (µg/L)	0.21^*	0.09	0.22^*	-0.14	-0.19^*	0.62^**	0.14	0.02	-0.21^*
TC (mmol/L)	0.46^**	0.20^*	0.09	-0.19^*	-0.26^**	0.40^**	0.42^*	0.10	-0.36^**	0.27^**
Vitamin A/TC	-0.20^*	-0.07	0.14	-0.07	0.06	0.19^*	-0.22^*	-0.10	0.08	0.62^**	0.54^**

FSH follicle-stimulating hormone, LH luteinizing hormone, E2 estradiol, AMH anti-Müllerian hormone
^aSpearman rank correlation coefficient
^*Significant correlation at p < 0.05 (two-tailed)
^**Significant correlation at p < 0.01 (two-tailed)

ISSN: 1472-6823