2010

2011

2012

Chi-square value

p level

Hallucinatory paranoid state [n (%)]

155 (25.92)

146 (24.01)

156 (25.74)

49.31

p < 0.01

Z

0.48

−0.84

0.36

Confusional state [n (%)]

32 (5.35)

44 (7.24)^a

19 (3.14)^b

Z

0.15

2.71

−2.85

Manic state [n (%)]

55 (9.20)

71 (11.68)^a

49 (8.09)

Z

−0.47

2.07

−1.61

Depressive state [n (%)]

150 (25.08)

128 (21.05)^b

161 (26.57)

Z

0.60

−2.24

1.65

Neurasthenic state [n (%)]

9 (1.51)^b

39 (6.41)^a

21 (3.47)

Z

−3.60

4.12

−0.54

Delirium [n (%)]

17 (2.84)

28 (4.61)^a

14 (2.31)

Z

−0.70

2.30

−1.61

Dementia [n (%)]

86 (14.38)

71 (11.68)

77 (12.71)

Z

1.31

−1.12

−0.19

Others [n (%)]

94 (15.72)

81 (13.32)

109 (17.99)

Z

0.04

−1.96

1.92