Citations reporting incidence of schizophrenia over time in England, 1881–1999, organised by study setting.

†Results from Dumfries & Galloway (Scotland) not officially part of present review but included as part of study.‡First time period lies outside the scope of this review, but results presented in table for completeness.∧(+) Increase in rate; (−) decrease in rate; (∼) no change in rate observed.