RT Journal A1 Kaess BM, Vasan RS, Mitchell GF T1 AOrtic stiffness and incident hypertension—reply JF JAMA JO JAMA YR 2013 FD January 2 VO 309 IS 1 SP 29 OP 30 DO 10.1001/jama.2012.68805 UL http://dx.doi.org/10.1001/jama.2012.68805 AB With regard to different subtypes of hypertension, we observed that of the 338 cases of incident hypertension at examination cycle 8 in our sample, few were isolated diastolic (n = 17) or combined systolic and diastolic (n = 26), whereas the majority were either isolated systolic (n = 102) or not classifiable due to antihypertensive treatment (n = 193). Because of the small number of incident cases that can be classified as isolated diastolic or combined hypertension, we cannot draw conclusions on the relationship between aortic stiffness (whether as a continuous or categorical value) and the subtype of hypertension.