Table 1. Univariate tests for socio-demographic factors.

Socio-demographic Factors	Readmitted N=77		Not readmitted N=291		p
	n	%	n	%
Gender
-    Male	25	32.5	116	39.9	0.235 c
-    Female	52	67.5	175	60.1
Ethnicity
-    Chinese	74	96.1	287	98.6	0.162 f
-    Non-Chinese	3	3.9	4	1.4
Marital status					0.060 c
-    Widow	24	31.2	122	41.9
-    Single	7	9.1	13	4.5
-    Married	36	46.7	137	47.1
-    Divorced or separated	10	13.0	19	6.5
Education level					0.627 c
-    Less than primary	28	36.3	125	43.0
-    Primary	24	31.2	90	30.9
-    Secondary	18	23.4	58	19.9
-    Tertiary or above	7	9.1	18	6.2
Type of residence					0.353 c
-    Living alone	10	13.0	23	7.9
-    Home with maid	5	6.5	12	4.1
-    Home with family or friends	40	51.9	154	52.9
-    Living in placement	22	28.6	102	35.1
	Median	IQR	Median	IQR
Age upon discharge (years)	75	70–80.5	77	72–83	0.050 m

^cChi-squared test, ^fFisher’s exact test, ^mMann Whitney U test, IQR interquartile range