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Table 1 Comparison of patients diagnosed with schizophrenia and bipolar disorder on social-demographic characteristics, ITAQ, DAI, SF-36 scores with t-tests or chi-square test

From: Comparison of burden among family members of patients diagnosed with schizophrenia and bipolar disorder in a large acute psychiatric hospital in China

Variables

SP (N=243)

BD (N=200)

Statistics

p

Mean/N

S.D./%

Mean/N

S.D./%

Patient’s characteristics

 Age(years)

35.5

12.2

31.3

12.3

t=3.575

<0.001***

 Onset age

26.5

9.8

25.9

9.7

t=0.661

0.509

 Duration of illness(year)

8.5

8.9

8.1

8.5

t=0.522

0.602

 Education (years)

11.3

3.0

11.4

3.5

t=−0.601

0.548

 Gender (male)

136

56.0%

98

49.0%

x 2=2.137

0.086

 Employed

59

24.3%

55

27.5%

x 2=0.595

0.440

 Positive family history

67

27.6%

60

30.0%

x 2=0.316

0.574

 Number of previous admissions

 

x 2=2.025

0.567

   

  0

77

31.7%

62

30.1%

  

  1

57

23.6%

49

24.5%

  

  2

36

14.8%

38

19.0%

  

  ≥3

73

30.0%

51

25.5%

  

 Marital status

 

x 2=1.855

0.396

   

  Unmarried

131

53.9%

116

58.0%

  

  Married

91

37.4%

73

36.5%

  

  Divorce/widow

21

8.6%

11

5.5%

  

With insurance

106

43.6%

68

34.0%

x 2=4.258

0.039*

Patient’s clinical features

 PANSS positive

24.1

6.4

--

--

  

 PANSS negative

24.0

7.7

--

--

  

 PANSS general

45.5

8.2

--

--

  

 PANSS total

93.5

15.1

--

--

  

 HAMD total

--

--

21.6

11.2

  

 YMRS total

--

--

31.6

11.7

  

 ITAQ total

5.6

5.2

6.5

5.9

t=−1.813

0.070

 DAI total

1.2

5.3

1.3

5.2

t=−0.160

0.873

 SF-36 PCS

47.8

31.8

53.7

33.3

t=−1.707

0.089

 SF-36 MCS

48.3

30.5

48.8

30.3

t=−0.135

0.892

  1. Abbreviations: SP Schizophrenia, BD Bipolar Disorder, PANSS Positive and Negative Syndrome Scale, HAMD Hamilton Depression Rating Scale, YMRS Young Mania Rating Scale, SF-36 PCS Short Form 36 Health Questionnaire Physical Component Summary, SF-36 MCS Short Form 36 Health Questionnaire Mental Component Summary, ITAQ Insight and Treatment Attitudes Questionnaire, DAI Drug Attitude Inventory, S.D. Standard Deviation, N Number
  2. Reported correlations are statistically significant at the *p < 0.05 level; or ***p < 0.001