Table 3.

Perceptions of data source reliability, timeliness and accuracy as ‘very acceptable’ by organizations who receive notification from that source (ordered by most acceptable reliability), Ontario, 2010

Source of surveillance informationa	Perceived as ‘very acceptable’
	Reliability		Timeliness		Accuracy		N
	%	95% CI	%	95% CI	%	95% CI
Public health laboratory tests	92	80, 98	51	35, 67	89	76, 96	37
iPHIS	84	69, 93	43	28, 59	62	46, 77	37
Hospital/clinic screening data	50	25, 75	43	20, 69	43	20, 69	14
ED visits	48	28, 68	35	18, 56	48	28, 68	23b
Community sentinel ILI consults	39	24, 57	18	8, 34	25	12, 42	33c
School absenteeism	22	11, 38	42	27, 58	22	11, 38	36d
Telehealth	29	12, 50	23	9, 43	27	12, 48	22e

^aResponses for workplace absenteeism, outpatient data, pharmacy sales and emergency medical service/911 data are not displayed due to the low number of organizations using these data sources.

^bTwo responses missing.

^cTwo responses missing for reliability and timeliness, three responses missing for accuracy.

^dOne response missing.

^eTwo responses missing for timeliness and accuracy, three responses missing for reliability.