Table 2.

Demographic features before and after propensity score matching.

Variable	Before Propensity Score Matching				p-value	After Propensity Score Matching				p-value
	Low Anxiety (BAI < 16, n = 462)		High Anxiety (BAI ≥ 16, n = 314)			Low Anxiety (BAI < 16, n = 199)		High Anxiety (BAI ≥ 16, n = 199)
	Mean	SD	Mean	SD		Mean	SD	Mean	SD
Age	74.87	7.39	71.99	9.63	<0.01*	73.34	7.27	73.08	9.07	0.74**
Education years	6.40	4.51	5.79	4.52	0.070*	5.79	4.43	5.69	4.60	0.82**
MADRS sum Score	20.08	7.11	28.10	9.19	<0.01*	24.00	7.60	25.28	8.14	0.11**
Item #1 (Apparent Sadness)	2.29	1.30	3.14	1.37	<0.01*	2.74	1.36	2.80	1.33	0.65**
Item #2 Reported Sadness)	2.76	1.34	3.68	1.38	<0.01*	3.16	1.34	3.31	1.30	0.29**
Item #3 (Inner tension)	2.10	1.19	3.04	1.35	<0.01*	2.46	1.22	2.70	1.24	0.052**
Item #4 (Reduced sleep)	2.44	1.89	3.04	1.80	<0.01*	2.80	1.94	2.86	1.79	0.73**
Item #5 (Reduced appetite)	1.60	1.38	2.50	2.65	<0.01*	1.86	1.50	2.28	3.13	0.089**
Item #6 (Concentration difficulties)	1.49	1.32	2.15	1.42	<0.01*	1.76	1.39	1.95	1.31	0.17**
Item #7 (Lassitude)	1.69	1.46	2.48	1.57	<0.01*	2.24	1.51	2.24	1.44	0.97**
Item #8 (Inability to feel)	2.13	1.39	2.70	1.51	<0.01*	2.66	1.40	2.37	1.38	0.040**
Item #9 (Pessimistic thought)	1.99	1.24	2.73	1.38	<0.01*	2.26	1.27	2.44	1.30	0.15**
Item #10 (Suicidal thought)	1.64	1.43	2.73	1.48	<0.01*	2.07	1.51	2.35	1.41	0.060**
BAI sum score	7.08	4.58	27.15	9.30	<0.01*	8.15	4.73	25.96	9.24	<0.01**

MADRS indicates Montgomery–Åsberg Depression Rating Scale; BAI, Beck Anxiety Inventory. *p-value is obtained by t-test. **p-value is obtained by paired t-test.