Table 2—

Mean quality of life (QoL) assessed by the Paediatric Asthma Quality of Life Questionnaire

QoL scores^#	All weeks of illness			Influenza-positive weeks
QoL scores^#	Vaccine	Placebo	p-value	Vaccine	Placebo	p-value
Scores n	173	160		21	19
Mean
Total	5.54	5.43	0.35	5.87	5.47	0.15
Activities	4.85	4.73	0.38	5.23	4.82	0.27
Emotions	6.30	6.26	0.28	6.47	6.38	0.75
Symptoms	5.24	5.10	0.72	5.69	5.03	0.08
Mean differences between baseline^¶
Total	−0.65	−0.76	0.19	−0.40	−1.00	0.02
Activities	−0.82	−1.00	0.14	−0.49	−1.31	0.02
Emotions	−0.35	−0.40	0.56	−0.21	−0.41	0.29
Symptoms	−0.81	−0.95	0.20	−0.52	−1.35	0.04
MID between baseline⁺
Total %	50	61	0.06	48	68	0.22
Activities %	54	64	0.06	48	79	0.06
Emotions %	27	26	1.00	24	26	1.00
Symptoms %	52	65	0.01	43	79	0.03

MID: minimal important difference. ^#: scores range 1–7, with higher scores indicating better QoL; ^¶: negative differences, indicating a poorer QoL during weeks of illness; ⁺: proportion of patients with a negative difference of ≥0.5 points