Baseline and follow-up characteristics stratified by PA: the Tromsø Study 1994–1995
| Inactive (n=1502) | Active (n=977) | Total (n=2479) | |
| Baseline characteristics | |||
| Age, years | 60.8 (9.3) | 55.1 (11.9) | 58.6 (10.7) |
| Sex, % (n) female | 61.6 (925) | 38.2 (373) | 52.4 (1298) |
| Body mass index, kg/m2 | 25.9 (4.0) | 25.5 (3.3) | 25.8 (3.8) |
| Systolic blood pressure, mm Hg | 145.1 (22.3) | 140.0 (20.5) | 143.1 (21.8) |
| Diastolic blood pressure, mm Hg | 83.2 (12.5) | 81.7 (12.3) | 82.6 (12.4) |
| Heart rate rest, beats/min | 71.7 (12.1) | 69.0 (12.1) | 70.6 (12.2) |
| LDL cholesterol, mmol/L | 5.2 (1.3) | 4.9 (1.3) | 5.1 (1.3) |
| C-reactive protein, mg/L | 2.7 (6.1) | 2.3 (7.1) | 2.6 (6.5) |
| Antihypertensives, % (n) | 12.3 (184) | 7.1 (69) | 10.3 (253) |
| Hypertension, controlled, % (n) | 1.9 (29) | 1.3 (13) | 1.7 (42) |
| Hypertension, uncontrolled, % (n) | 10.3 (155) | 5.7 (56) | 8.5 (211) |
| Hypertension, untreated, % (n) | 46.5 (699) | 42.0 (410) | 44.7 (1109) |
| Stroke, % (n) | 2.1 (31) | 1.1 (11) | 1.7 (42) |
| Diabetes, % (n) | 2.7 (40) | 1.4 (14) | 2.2 (54) |
| Palpitations, % (n) | 24.4 (309) | 20.5 (185) | 22.8 (494) |
| Thyroid disease, % (n) | 5.4 (81) | 3.9 (38) | 5.5 (119) |
| Smoking, % (n) | 33.6 (504) | 27.7 (271) | 31.3 (775) |
| Alcohol, glasses/14 days | 3.6 (5.9) | 5.2 (7.0) | 4.2 (6.5) |
| Coffee, cups/day | 5.4 (3.2) | 5.5 (3.6) | 5.5 (3.4) |
| LV mass index, g/h2.7 | 44.4 (12.3) | 42.9 (12.1) | 43.8 (12.2) |
| LV mass index, g/h2.7 female | 43.6 (12.0) | 39.4 (10.5) | 42.4 (11.8) |
| LV mass index, g/h2.7 male | 45.7 (12.6) | 45.0 (12.5) | 45.4 (12.5) |
| LA diameter, cm | 3.9 (0.6) | 4.0 (0.6) | 4.0 (0.6) |
| LA diameter, cm female | 3.8 (0.6) | 3.7 (0.5) | 3.8 (0.5) |
| LA diameter, cm male | 4.1 (0.6) | 4.2 (0.5) | 4.2 (0.6) |
| LA diameter index, cm/m2 | 2.2 (0.3) | 2.1 (0.3) | 2.2 (0.3) |
| LA diameter index, cm/m2 female | 2.2 (0.3) | 2.2 (0.3) | 2.2 (0.3) |
| LA diameter index, cm/m2 male | 2.1 (0.3) | 2.1 (0.3) | 2.1 (0.3) |
| Physical activity * | |||
| Inactive, % (n) | 100 (1502) | 0.0 (0) | 60.6 (1502) |
| Low, % (n) | 0.0 (0) | 39.2 (383) | 15.4 (383) |
| Moderate, % (n) | 0.0 (0) | 40.0 (391) | 15.8 (391) |
| Vigorous, % (n) | 0.0 (0) | 20.8 (203) | 8.2 (203) |
| Follow-up characteristics | |||
| AF during follow-up, % (n) | 17.9 (269) | 13.3 (130) | 16.1 (399) |
| Follow-up time, years | 15.9 (6.7) | 17.6 (6.2) | 16.6 (6.6) |
Numbers are mean±SD or percentage and n.
*Hard leisure time PA, weekly average over the last year.
AF, atrial fibrillation; LA, left atrial; LDL, low-density lipoprotein; LV, left ventricular; PA, physical activity.