Table 7. Univariate regression analysis of factors affecting asthma control.

Variables	Odds ratio	95% Confidence interval	P-value
Gender
Female versus male	1.41	0.83–2.40	0.2072
Age
1-s.d. increase (19.63 years)	1.43	1.10–1.84	0.0068
IRSAD
1-s.d. increase (39.55 points)	1.16	0.91–1.50	0.2338
Written asthma action plan
Yes versus no	1.02	0.51–2.01	0.9641
Overall quality of life score
One-point increase	22.35	9.27–53.88	<0.0001
Overall medication adherence scores
One-point increase	1.00	0.96–1.03	0.8098
Overall asthma knowledge score
One-point increase	0.98	0.84–1.14	0.7955
Patient beliefs score
One-point increase	0.89	0.84–0.94	<0.0001
On ICS medication
Yes versus no	2.42	1.34–4.35	0.0033
Current smoker
Yes versus no	2.23	1.14–4.36	0.0189
Hay fever
Yes versus no	1.28	0.77–2.12	0.3410
Sinusitis
Yes versus no	2.69	1.32–5.49	0.0065
Combination ICS/LABA
Yes versus no	1.54	0.92–2.57	0.0998

Abbreviations: ICS, inhaled corticosteroid; IRSAD, Index of Relative Socio-economic Advantage and Disadvantage; LABA, long-acting β₂-agonist.