Table 1.
Baseline characteristics of iVitality participants.a,b
| Demographics | All participants (N=151) | |
| Age (years) |
|
57.3 (5.3) |
| Female, n (%) |
|
107 (70.9) |
| Body mass index |
|
26.4 (4.0) |
| Highest education level, n (%)c |
|
|
|
|
Low | 16 (10.6) |
|
|
Middle | 44 (29.1) |
|
|
High | 88 (58.3) |
| Study center, n (%) |
|
|
|
|
Academic Medical Center Amsterdam | 55 (36.4) |
|
|
Leiden University Medical Center | 96 (63.6) |
| Type of phone, n (%) |
|
|
|
|
iPhone | 56 (37.1) |
|
|
Samsung | 59 (39.1) |
|
|
HTC | 15 (9.9) |
|
|
Other | 21 (13.9) |
| Blood pressure |
|
|
|
|
Systolic blood pressure (mm Hg) | 137.8 (18.2) |
|
|
Diastolic blood pressure (mm Hg) | 85.4 (10.8) |
|
|
Heart rate (bpm) | 67.2 (10.2) |
| Vascular risk factors, n (%) |
|
|
|
|
History of hypertension | 32 (21.2) |
|
|
History of diabetes mellitus | 2 (1.3) |
|
|
History of MI | 4 (4.6) |
|
|
History of arrhythmia | 11 (7.3) |
|
|
History of heart failure | 3 (2.0) |
|
|
Hypercholesterolemia | 14 (9.3) |
|
|
Current smoker | 14 (9.3) |
| Antihypertensive medication, n (%) |
|
|
|
|
Diuretics | 15 (9.9) |
|
|
ACE inhibitors | 6 (4.0) |
|
|
Beta-blockers | 11 (7.3) |
|
|
Calcium antagonists | 6 (4.0) |
|
|
Other | 9 (6.0) |
| No of antihypertensive medication, n (%) |
|
|
|
|
1 | 21 (65.6) |
|
|
2 or more | 11 (34.4) |
aData represent mean (standard deviation) unless stated otherwise
bAbbreviations: MI, myocardial infarction; MMSE, mini-mental state examination.
cMissing data for n=3 participants. Low: primary education, lower education, MAVO/MULO. Intermediate: high general secondary education (HAVO, HBS), Preparatory Scientific Education (VWO), intermediate professional education (MBO). High: higher professional education (HBO), academic education (university).