Table 1 Differences between lithium users and non-lithium users

Gender (% female)

61.5

66.7

0.934

Age (years)

47 (13)

40 (9)

0.036

Creatinine (μmol/l)

77.59 (18.9)

68.45 (14.8)

0.115

TSH (mU/l)

2.7 (3.6)

1.9 (0.7)

0.454

Sodium (mmol/l)

140.5 (2.26)

140.9 (1.30)

0.353

Potassium (mmol/l)

4.5 (0.35)

4.3 (0.26)

0.025

Calcium serum level (mmol/l)

2.49 (0.11)

2.37 (0.10)

<0.001