TABLE 4.

Comparison of fetal pulmonary artery Doppler data according to treatment approach of patients recovered from COVID‐19 ^a

	Expectant management (n = 29)	Treatment in hospital (n = 12)	P value
PA PSV	68.5 ± 18.6	62.8 ± 10.7	0.436
PA S/D	7.1 ± 1.1	6.6 ± 1.6	0.049
PA PI	1.7 ± 0.6	2.0 ± 0.4	0.185
PA RI	1.06 ± 0.5	0.95 ± 0.4	0.488
PA AT	48.1 ± 13.4	37.1 ± 10.3	0.023
PA ET	203.3 ± 38.6	188.2 ± 44.6	0.250
PATET	0.24 ± 0.07	0.20 ± 0.07	0.045

Abbreviations: AT, acceleration time; ET, ejection time; PA, pulmonary artery; PATET, acceleration/ejection time ratio; PI, pulsatility index; PSV, peak systolic velocity; S/D, systolic/diastolic ratio.

^a Values are given as mean ± SD. Statistically significant data (P < 0.05) is written in bold.