Can the bias of self-reported sitting time be corrected? A statistical model validation study based on data from 23 993 adults in the Norwegian HUNT study

Table 2 Mean difference and limits of agreement according to number of weekdays with valid recording of device-measured sitting time

No. of days	No. of people	Mean difference (min)	SD	Limits of agreement		Limits of agreement range
No. of days	No. of people	Mean difference (min)	SD	-1.96 SD	+ 1.96 SD	Limits of agreement range
1	598	-78	235	-540	384	924
2	876	-87	208	-495	321	816
3	2 456	-92	194	-472	287	759
4	18 162	-114	177	-463	235	698
5	1 901	-92	187	-459	274	733

ISSN: 1479-5868