Table 2.

Acute and Chronic Onset of Diseases

Acute onset of disease		The underlying chronic conditions
LRTI	167 (47.4%)	Cardiac disease a	90 (25.6%)
Bronchiolitis/asthma attack	61 (17.3%)	Neurological conditions	77 (21.9%)
URTI	12 (3.4%)	Immune deficiency	25 (7.1%)
Postoperative stridor	12 (3.4%)	Metabolic disease	22 (6.3%)
Heart failure	41 (11.6%)	Respiratory disease b	20 (5.7%)
Sepsis	30 (8.5%)	Genetic	19 (5.4%)
CNS-related	21 (6%)	Genitourinary	16 (4.5%)
ARDS	13 (3.7%)	Malignancy	11 (3.1%)
		Gastrointestinal disease c	9 (2.6%)