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. 2018 Apr 26;361:k1453. doi: 10.1136/bmj.k1453

Table 2.

Characteristics of participants in three study samples. Data are number (%) of participants unless stated otherwise

Characteristic and risk factor Index age
55 years (n=5338) 65 years (n=4805) 75 years (n=3199)
Male 2531 (47.4) 2126 (44.3) 1291 (40.4)
Age (years; mean (standard deviation)) 55 (1) 65 (1) 75 (1)
Calendar year for Framingham Heart Study examination (median (interquartile range) 1995 (1985-2005) 1993 (1982-2005) 1992 (1983-2001)
Length of follow-up (years; median (interquartile range)) 14 (7-22) 11 (6-18) 8 (4-13)
Smoking
 Optimal 1935 (36.3) 1570 (32.7) 1233 (38.5)
 Borderline 2275 (42.6) 2414 (50.2) 1667 (52.1)
 Elevated 1128 (21.1) 821 (17.1) 299 (9.4)
Alcohol
 Optimal 4283 (80.2) 3857 (80.3) 2767 (86.5)
 Elevated 1055 (19.8) 948 (19.7) 432 (13.5)
Body mass index
 Optimal 1785 (33.4) 1537 (32.0) 1126 (35.2)
 Borderline 2136 (40.0) 2008 (41.8) 1364 (42.6)
 Elevated 1417 (26.6) 1260 (26.2) 709 (22.2)
Blood pressure
 Optimal 1539 (28.8) 778 (16.2) 272 (8.5)
 Borderline 1792 (33.6) 1303 (27.1) 676 (21.1)
 Elevated 2007 (37.6) 2724 (56.7) 2252 (70.4)
Diabetes
 Optimal 3805 (71.3) 3137 (65.3) 2249 (70.3)
 Borderline 1187 (22.2) 1149 (23.9) 584 (18.3)
 Elevated 346 (6.5) 519 (10.8) 366 (11.4)
History of heart failure or myocardial infarction
 Optimal 5069 (95.0) 4236 (88.2) 2623 (82.0)
 Elevated 269 (5.0) 569 (11.8) 576 (18.0)