Table 4.

Multiple linear regression model: Predictors of asthma self-management knowledge score among asthma patients at a polyclinic in Western part of Singapore, 2022 (n=134)

Characteristics	Unstandardized β	Standardized β	SE of β	t	P-value*
Age (reference 21–35)
36–60	−5.28	−0.12	4.40	−1.20	0.233
Above 60	−11.42	−0.19	6.58	−1.74	0.085
Sex (reference male)	−1.29	−0.03	3.86	−0.33	0.739
Ethnicity (reference Chinese)
Malay	−2.44	−0.06	4.24	−0.58	0.566
Indian	−3.95	−0.08	4.79	−0.82	0.412
Others	−7.68	−0.07	9.47	−0.81	0.419
Level of education (reference primary education or below)
Secondary education	10.35	0.22	6.03	1.72	0.088
Tertiary education	20.82	0.47	6.04	3.45	0.001
Smoking history	−8.98	−0.18	4.25	−2.12	0.037
Family history of asthma	−0.48	−0.01	3.75	−0.13	0.899
Having a WAAP	−3.00	−0.07	4.02	−0.75	0.457
Being taught about asthma	6.79	0.12	4.95	1.37	0.173

Model statistics: R²=0.26, adjusted R²=0.19, F (12,121)=3.58, P<0.001. ASMQ=Asthma Self-Management Questionnaire, WAAP=Written asthma action plan, SE=Standard error, *Statistically significant at P<0.05