Table 1.

Circulating bicarbonate, chloride and potassium levels in patients on treatment with topiramate for ≥3 months

Ion	n	Concentration (mmol l−1)
Bicarbonate	289	21.5 ± 3.48
Chloride	142	108 ± 3.7
Potassium	110	3.9 ± 0.4

Both case–control and longitudinal studies are included. Results are given as weighted means ± SD.