TABLE 3.

The incidence rate ratio (IRR) for episodes of recurrent wheeze at 2 years of age are given by factors observed in infants admitted to hospital with acute bronchiolitis, based on zero-truncated negative binomial regression analysis

	Recurrent wheeze IRR (95% CI)	p-value
Viral detection during acute bronchiolitis
RSV	0.95 (0.70–1.28)	0.86
HRV	0.72 (0.57–0.91)	0.16
HRV A or B	0.58 (0.40–0.83)	0.14
HRV C	0.84 (0.65–1.09)	0.51
RSV high genomic load	0.92 (0.73–1.15)	0.70
HRV high genomic load	0.61 (0.38–0.99)	0.31
Multiple viruses	0.91 (0.72–1.16)	0.69
Allergic sensitisation#
Any sensitisation	1.46 (0.97–2.19)	0.36
Any food sensitisation	1.53 (1.0–2.36)	0.32
Any inhalant sensitisation	1.18 (0.48–2.90)	0.85
Egg sensitisation	3.58 (1.82–3.58)	0.059
Cow's milk sensitisation	0.49 (0.29–0.95)	0.17
Peanut sensitisation	1.45 (0.25–8.33)	0.83
Polysensitisation	1.44 (0.60–3.49)	0.68
Salivary morning cortisol	1.01 (1.0–1.0)	0.56

The zero-truncated negative binomial regression analysis are adjusted for sex, age at inclusion and parental atopy. RSV: respiratory syncytial virus; HRV: human rhinovirus.^#: specific immunoglobulin E ≥0.35 kU·L⁻¹.