Table 2. Sample characteristics for surveys carried out in five provinces of rural China before and after epilepsy treatment and educational interventions.

Characteristic	2000 survey			2004 survey
Sampling population	58 806			53 796
Surveyed	55 616	94.6%		51 644	96.0%
Screened positive	869			653
Lifetime history of epilepsy	387	7.0/1000 (95% CI: 6.3–7.7)		320	6.2/1000 (95% CI: 5.5–6.9)
Active epilepsy	257	4.6/1000 (95% CI: 4.1–5.2)		231	4.5/1000 (95% CI: 3.9–5.0)

CI, confidence interval.