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Table 1 Demographic and clinical characteristics of the studied sample

From: Analysis on in vitro effect of lithium on telomere length in lymphoblastoid cell lines from bipolar disorder patients with different clinical response to long-term lithium treatment

Variables

Li-R (n = 15)

Li-NR (n = 14)

p (Li-R vs. Li-NR)

BD (n = 29)

HC (n = 15)

p (BD vs HC)

Age (mean ± SD)

42.7 ± 15.6

42.9 ± 12.9

0.97

42.8 ± 14.1

42.4 ± 5.1

0.89

Sex (M/F)

7/8

7/7

1

14/15

7/8

1

Age at onset (mean ± SD)

27.7 ± 13.7

25.1 ± 7.9

0.54

 

/

 

Years of illness (mean ± SD)

14.7 ± 7.4

13.3 ± 9.9

0.66

 

/

 

Years of lithium (mean ± SD)

7.4 ± 7.7

10.4 ± 5.1

0.24

 

/

 

TS of the Alda scale (mean ± SD)

8.6 ± 0.91

0.00 ± 0.00

/

 

/

 

Number of episodes (mean ± SD)

6.5 ± 4.5

13.3 ± 5.9

0.002

 

/

 

Psychotic symptoms (Y/N)

6/9

11/3

0.06*

 

/

 

Suicide attempts (Y/N)

1/14

6/8

0.03*

 

/

 
  1. M male; F female; SD standard deviation; Y yes; N no; TS total score; Li-R lithium responders; Li-NR lithium non-responders; BD bipolar disorder; HC non-psychiatric controls; and p: p value of the test
  2. *p value of the Fisher exact test. P values in bold are statistically significant (p < 0.05)