Table 2.

Simple and multiple logistic regression analysis on overall risks of respiratory distress.

		Respiratory distress
		Simple logistic regression		Multiple logistic regression
	n = 12,490	OR	[CI 95%]	OR	[CI 95%]
Full-term-Preterm, AGA-SGA
FT-AGA	9,396	1		1
FT-SGA	771	3.11***	[2.35–4.12]	1,33	[0.96–1.84]
PT-AGA	2,003	9.96***	[8.49–11.7]	2.89***	[2.37–3.51]
PT-SGA	320	26.6***	[20.7–34.2]	5.84***	[4.28–7.99]
Sex
Boy	6,475	1.16*	[1.01–1.33]	1.17	[0.99–1.39]
Girl	6,015	1		1
Sepsis
Yes	1,705	19.5***	[16.8–22.7]	5.56***	[4.66–6.63]
No	10,785	1		1
Asphyxia
Yes	332	17.5***	[13.9–22.0]	2.32***	[1.76–3.05]
No	12,158	1		1
Resuscitation
Yes	2,279	24.9***	[21.1–29.4]	9.08***	[7.50–11.0]
No	10,211	1		1
Maternal age
<18 years	319	0,84	[0.53–1.35]	0,96	[0.54–1.69]
18–35	10,214	1		1
>35	1,957	1.52***	[1.29–1.79]	1,16	[0.94–1.43]
Maternal infection risk
Yes	437	4.66***	[3.71–5.84]	2.45***	[1.81–3.31]
No	12,053	1		1
Delivery mode
Spontaneous	6,752	1		1
Assisted
Spontaneous	596	1.45*	[1.06–1.99]	1.14	[0.77–1.68]
Caesarean	5,142	1.86***	[1.62–2.14]	1.02	[0.86–1.22]

AGA, appropriate gestational age, CI, confident interval, FT, full-term, PT, preterm, SGA, small for gestational age, OR, Odds ratio.

^*p < 0.05.

^**p < 0.01.

^***p < 0.001.