TABLE 1.

Flow-chart, study sample were we also included one of the cognitive tests.

	N yes	N no		Baseline characteristics at Tromsø Wave 6 (T0)
			Age, mean (SD)	Women, (%)	Education, (% high)	Poor self-rated health (%)	SBP, mmHg (SD)	BMI, kg/m2 (SD)	Digit Symbol, mean (SD)**
0. Invited to baseline examination, 45–74 years, T0	12,054
1a. Did not participate in T0		3,241
1b. Participated in T0	8,813		59.9 (7.8)	52	36	35	137.7 (21.9)	27.1 (4.3)	40.3 (12.6)
2a. No valid BP measurement in T0		34
2b. Valid BP measurements in T0	8,779		59.9 (7.8)	52	36	35	137.7 (21.9)	27.1 (4.2)	40.3 (12.6)
3a. Not invited, died or emigrated before T1		416	65.1 (6.4)	40	30	56	143.3 (24.1)	26.9 (4.3)	33.0 (11.9)
3b. Invited to T1, Phase I	8,363		59.7 (7.8)	52	36	34	137.4 (21.7)	27.1 (4.2)	40.7 (12.5)
4a. Did not participate in T1, Phase I		1,895	61.0 (8.0)	52	31	42	139.9 (22.7)	27.3 (4.5)	37.3 (12.3)
4b. Participated in T1, Phase I	6,468		59.3 (7.7)	53	37	31	136.7 (21.4)	27.0 (4.2)	41.5 (12.4)
5a. Not invited to T1, Phase II (cognition)		1,172	53.5 (8.5)	42	45	28	132.1 (20.7)	27.0 (4.3)	38.3 (9.8)
5b. Invited to T1, Phase II (cognition)	5,296		60.6 (6.9)	55	36	32	137.7 (21.4)	27.0 (4.1)	41.5 (12.4)
6a. Did not participate in T1 Phase II		783	61.8 (7.3)	53	32	37	140.0 (22.8)	26.9 (4.2)	39.0 (13.0)
6b. Participated in T1 Phase II	4,513		60.4 (6.8)	55	37	31	137.3 (21.1)	27.0 (4.1)	41.9 (12.3)
7a. Died before T1 data collection was finished		17
7b. Alive when T1 data collection was finished	4,496		60.3 (6.8)	55	37	31	137.2 (21.1)	27.0 (4.1)	41.9 (12.3)
8a. T0 BP measurements out of range∗		31
8b. T0 BP measurements within range	4,465
9. Final Study Sample	4,465		60.3 (6.8)	55	37	31	136.8 (20.3)	27.0 (4.1)	42.0 (12.3)

* SBP > 200 mmHg, SBP < 80 mmHg, DBP > 120 mmHg, DBP < 30 mmHg. ** Available only for a subsample of 53%.