Table 1—

Varimax rotated factor pattern (placebo baseline data from all three studies)

	Factor
	1	2	3	4
AQLQ activities	89^#	11	−12	−17
AQLQ environment	83^#	7	−3	−7
AQLQ symptoms	74^#	6	−40	−30
AQLQ emotions	74^#	5	−21	−24
FEV₁	0	92^#	−8	−4
PEF pm	23	84^#	−3	18
PEF am	15	83^#	0	−11
FVC	15	80^#	−2	8
FEF	−19	69^#	−12	−16
Night-time waking	−24	−6	84^#	15
Night-time rescue β₂‐agonist	−10	−6	75^#	18
Night-time symptoms	−25	−4	51^#	44^#
Nights without β₂‐agonist %	13	6	−77^#	−8
Nights without waking %	22	3	−84^#	−7
Short of breath daytime	−42	−7	5	59^#
Activity limitation	−48	−2	14	56^#
ΔPEF pm–am	17	5	−5	59^#
Chest tightness daytime	−41	0	0	51^#
Wheeze daytime	−23	6	16	50^#
Rescue β₂‐agonist daytime	−4	−10	18	46^#
Days without β₂‐agonist %	4	0	−11	−44^#

For clarity of reading, all values have been multiplied by 100
AQLQ: Asthma Quality of Life Questionnaire
FEV₁: forced expiratory volume in one second
PEF: peak expiratory flow; FVC: forced vital capacity
FEF: forced expiratory flow
^#: statistically significant loading on factor