Table 3.

Association of newborn characteristics with neonatal infections

Characteristics	Neonatal infections in first 2 weeks (n = 30,267)
	Number	Infections	Percent	RR	95% CI
Single/multiple birth
Singleton	29,558	3386	11.5	1.00
Multiple birth	709	206	29.1	2.47	2.18–2.80
Gestational age at birth
< 35 weeks	2693	442	16.4	1.44	1.31–1.58
35–36 weeks	3546	415	11.7	1.04	0.95–1.15
37 weeks or more	24,028	2735	11.4	1.00
Sex of the baby
Male	15,646	1880	12.0	1.00
Female	14,621	1712	11.7	0.97	0.92–1.03
Birth weight
< 1500 g	210	142	67.6	6.50	5.74–7.37
1500–1999 g	1369	357	26.1	2.55	2.29–2.83
2000–2499 g	8386	1040	12.4	1.20	1.12–1.29
2500 g or higher	20,302	2053	10.1	1.00
Birth asphyxia
Yes	3427	709	20.7	1.87	1.73–2.03
No	26,840	2883	10.7	1.00
Sterile cord cutting and tying
Yes	26,291	3122	11.9	1.08	0.98–1.18
No	3976	470	11.8	1.00
Non-study substances on cord
Yes	1779	236	13.3	1.05	0.92–1.20
No	28,488	3356	11.8	1.00
Dried within 30 min
Yes	25,719	2893	11.3	1.00
No	4548	699	15.4	1.18	1.08–1.28
Wrapped within 30 min
Yes	25,321	2828	11.2	1.00
No	4946	764	15.5	1.20	1.10–1.31
Breastfed within 1 h
Yes	18,329	2093	11.4	1.00
No	11,938	1499	12.6	1.05	0.98–1.13
Oil massaged within 1 h
Yes	3292	437	13.3	1.11	1.00–1.23
No	26,975	3155	11.7	1.00
Delayed bath for 1 day
Yes	26,519	3084	11.6	1.10	0.99–1.21
No	3748	508	13.6	1.00