Table 3  Correlation of serum electrolyte disturbances with COVID-19 severity and obstetric complications.

Parameter	COVID-19 severity		Obstetric complications
	r value a	p value a	r value a	p value a
COVID-19: Coronavirus disease 2019 a Correlation analysis was performed by Spearman test.
Hyponatremia	0.02	0.46	0.04	0.24
Hypernatremia	0.27	< 0.001	0.03	0.35
Hypopotassemia	0.20	< 0.001	0.10	0.004
Hyperpotassemia	0.27	0.17	0.25	0.21
Hypochloremia	− 0.02	0.72	0.10	0.03
Hyperchloremia	0.12	0.02	− 0.03	0.56
Hypomagnesemia	− 0.13	0.12	− 0.23	0.01
Hypermagnesemia	0.18	0.03	0.28	0.001
Hypocalcemia	0.12	0.03	− 0.04	0.41
Hypercalcemia	− 0.03	0.59	0.05	0.27