Determinants of generalized anxiety and construction of a predictive model in patients with chronic obstructive pulmonary disease

Table 3 Multifactorial logistic regression analysis for the development of generalized anxiety disorder in the modeling group

Factors	β	SE	Ward χ2	P value	OR	95%CI
Educational level (junior high school and below)	1.198	0.451	7.061	0.009	3.315	1.370-8.024
Average household monthly income (< 3000 CNY)	0.832	0.339	6.024	0.014	2.298	1.182-4.466
Smoking history	0.650	0.274	5.632	0.019	1.916	1.120-3.278
Smoking index (≥ 400 cigarettes/year)	0.633	0.282	5.045	0.024	1.884	1.084-3.274
Acute exacerbations in the past year (≥ 2 times)	1.295	0.368	12.389	< 0.001	3.652	1.775-7.512
Presence of cardiovascular comorbidities	1.047	0.415	6.365	0.010	2.849	1.263-6.426
Understanding of the disease (completely unaware)	0.986	0.433	5.187	0.021	2.681	1.147-6.264
Personality (introverted type)	0.848	0.309	7.539	0.005	2.336	1.275-4.281

OR: Odds ratio; CNY: China yuan.