Table 3.

Hierarchical Multivariable Analysis: Odds Ratio for Death Due to RSV Illness

	Level 1		Level 2		Level 3
	Odds Ratio (95% CI)	P	Odds Ratio (95% CI)	P	Odds Ratio (95% CI)	P
Slum and settlement	7.67 (1.8–32.7)	.006	7.37 (1.2–43.8)	.028	17.09 (1.3–219.2)	.029
Lack of public transport	1.03 (.3–3.9)	.964	1.05 (.1–7.6)	.964	1.13 (.1–15.8)	.927
Overcrowding(>3 person per bedroom)	1.88 (.52–6.8)	.334	4.04 (.7–23.1)	.115	2.20 (.2–21.3)	.505
Stressful situation(previous week)			4.06 (.83–19.8)	.083	5.18 (.5–50.3)	.156
Caesarean delivery			6.71 (1.2–37.5)	.030	8.36 (.7–98.9)	.092
Underlying disease			8.45 (1.6–45.4)	.013	14.87 (1.3–164.6)	.028
No breastfeeding in <12 months					0.95 (.1–10.1)	.967
PCC/ED visit during last illness					0.01 (.01–12.9)	.524

Abbreviations: CI, confidence interval; ED, emergency department; NICU, neonatal intensive care unit; PCC, primary care center; RSV, respiratory syncytial virus.