Baseline Framingham risk score does not predict future ECG-derived QRS duration over an average of 3.3 years

Table 2 QRS duration baseline and follow-up data

	All (N = 202)			Male (N = 86)			Female (N = 116)
	Min.	Max.	Mean ± SD	Min.	Max.	Mean ± SD	Min.	Max.	Mean ± SD
Baseline QRSd (ms)	76	180	101.1 ± 15.5	77	180	106.1 ± 16.0	76	167	97.5 ± 14.1
Follow-up QRSd (ms)	77	177	103.0 ± 16.3	83	163	107.9 ± 16.1	77	177	99.3 ± 15.5
QRSd change (ms)	− 37	67	1.8 ± 11.4	− 37	67	1.8 ± 12.5	− 30	63	1.8 ± 10.7
Interval years (between visits)	0.6	6.0	3.3 ± 1.1	1.0	6.0	3.2 ± 1.1	0.6	5.3	3.3 ± 1.1

This tables provides QRS duration for the two clinic visits (baseline and follow-up). Also the table calculates QRSd change and interval years between the two clinic visits

ISSN: 2466-1171