Table 1.

Norfolk database: lithium monitoring tests or measures conducted on all people registered between June 2005 and June 2006 (n = 946) and between June 2011 and June 2012 (n = 1385).

Number of tests in past year	Serum lithium n (%)
	2005/6	2011/12
0	0 (0%)	0 (0%)
1	60 (6.3%)	71 (5.1%)
2	205 (21.7%)	124 (9.0%)
3*	381 (40.3%)	241 (17.4%)
4$	220 (23.3%)	617 (44.5%)
5 or more$	80 (8.5%)	332 (24.0%)

^*Meets Quality and Outcomes Framework targets.

^$Meets National Institute for Health and Clinical Excellence standards.