Relationship between neonatal respiratory distress syndrome pulmonary ultrasonography and respiratory distress score, oxygenation index, and chest radiography grading

Table 3 Comparison of respiratory distress syndrome neonatal ultrasonography score, respiratory distress score, oxygenation index, and chest X-ray grade before treatment

Items		n	Ultrasonography score, points	Respiratory distress score, points	Oxygenation index	Chest X-ray grade
						0	I	II	III	IV
Sex	Male	50	26.68 ± 7.41	7.60 ± 1.32	7.99 ± 2.64	0	1	13	17	19
	Female	23	26.87 ± 7.35	7.83 ± 0.98	7.76 ± 1.59	0	1	7	5	10
t/Z			−0.102	−0.730	0.388	−0.057
P value			0.919	0.468	0.699	0.955
Pregnancy duration in wk	< 32	29	25.66 ± 7.83	7.69 ± 1.26	7.59 ± 2.76	0	2	7	10	10
	32–36	35	26.77 ± 6.95	7.57 ± 1.29	8.01 ± 2.17	0	0	11	11	13
	> 36	9	30.11 ± 6.86	8.00 ± 0.87	8.66 ± 1.40	0	0	2	1	6
F/H			1.277	0.436	0.744	2.073
P value			0.285	0.648	0.479	0.355
Weight in g	< 1500	21	26.29 ± 8.28	7.76 ± 1.22	7.87 ± 3.06	0	1	6	5	9
	1500–2500	38	26.29 ± 6.85	7.53 ± 1.22	7.56 ± 2.03	0	1	10	14	13
	> 2500	14	28.64 ± 7.39	7.93 ± 1.27	8.97 ± 1.70	0	0	4	3	7
F/H			0.576	0.625	1.901	0.494
P value			0.565	0.538	0.157	0.781
First ultrasonography time in h	< 1	15	29.20 ± 6.13	8.07 ± 0.80	9.02 ± 2.65	0	0	2	3	10
	1–1.5	39	25.23 ± 7.68	7.59 ± 1.33	7.68 ± 2.30	0	2	12	13	12
	> 1.5	19	27.89 ± 7.09	7.53 ± 1.26	7.55 ± 2.06	0	0	6	6	7
F/H			1.954	1.000	2.135	5.689
P value			0.149	0.373	0.126	0.058

Data are mean ± standard deviation or n (%).