From: Association of health behaviour with heart rate variability: a population-based study
 |  |  | Heart rate | SDNN | LF/HF | HF | LF | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Risk factor | Â | N | Mean (95%CI) | Mean (95%CI) | Mean (95%CI) | Mean (95%CI) | Mean (95%CI) | |||||||||
Sports-index | Q1 | 243 | 72.6 | (71.1-74.1) | †| 25.8 | (24.2-27.6) |  | 1.6 | (1.4-1.8) |  | 102.8 | (87.1-121.2) | 162.8 | (140.7-188.3) |  |
 | Q2 | 255 | 72.0 | (70.5-73.5) |  | 24.5 | (23.0-26.1) |  | 1.6 | (1.4-1.8) |  | 100.2 | (85.3-117.8) | 158.5 | (137.5-182.8) |  |
 | Q3 | 177 | 71.9 | (70.1-73.7) |  | 27.6 | (25.6-29.8) |  | 1.6 | (1.4-1.8) |  | 119.5 | (98.4-145.1) | 193.1 | (162.7-229.1) |  |
 | Q4 | 215 | 69.3 | (67.7-70.9) |  | 27.2 | (25.4-29.2) |  | 1.6 | (1.4-1.8) |  | 121.3 | (101.7-144.6) | 198.0 | (169.5-231.2) |  |
Leisure time-index | Q1 | 181 | 71.5 | (69.8-73.3) | Â | 25.6 | (23.8-27.7) | Â | 1.5 | (1.3-1.7) | Â | 113.6 | (93.7-137.6) | 166.1 | (140.2-196.7) | Â |
 | Q2 | 234 | 73.1 | (71.6-74.7) |  | 26.0 | (24.3-27.8) |  | 1.7 | (1.5-1.9) |  | 104.2 | (88.0-123.4) | 173.1 | (149.1-200.9) |  |
 | Q3 | 269 | 70.1 | (68.6-71.5) |  | 26.1 | (24.5-27.8) |  | 1.5 | (1.4-1.7) |  | 111.6 | (95.4-130.6) | 172.8 | (150.4-198.6) |  |
 | Q4 | 208 | 71.3 | (69.7-72.9) |  | 26.6 | (24.8-28.6) |  | 1.7 | (1.5-1.9) |  | 108.8 | (91.0-130.2) | 188.1 | (160.6-220.4) |  |
Total activity-index | Q1 | 182 | 73.6 | (71.8-75.3) | †| 24.9 | (23.1-26.8) |  | 1.5 | (1.3-1.7) |  | 102.4 | (84.6-124.0) | 155.2 | (131.1-183.6) |  |
 | Q2 | 236 | 71.9 | (70.4-73.5) |  | 25.1 | (23.5-26.8) |  | 1.6 | (1.5-1.8) |  | 98.7 | (83.5-116.8) | 160.6 | (138.5-186.3) |  |
 | Q3 | 274 | 71.0 | (69.5-72.4) |  | 27.3 | (25.7-29.0) |  | 1.6 | (1.4-1.7) |  | 120.5 | (103.2-140.9) | 188.5 | (164.4-216.3) |  |
 | Q4 | 198 | 69.7 | (68.0-71.3) |  | 27.0 | (25.1-29.0) |  | 1.7 | (1.5-1.9) |  | 115.0 | (95.8-138.2) | 196.3 | (167.0-230.8) |  |
No. of currently smoked tobacco products/day | none | 677 | 70.5 | (69.6-71.4) | ‡ | 26.3 | (25.3-27.3) |  | 1.6 | (1.5-1.8) | †| 108.8 | (98.4-120.3) | 178.7 | (163.6-195.3) |  |
 | T1 | 77 | 73.3 | (70.6-76.0) |  | 25.9 | (23.1-29.1) |  | 1.8 | (1.5-2.1) |  | 100.0 | (74.5-134.2) | 177.0 | (136.5-229.5) |  |
 | T2 | 89 | 73.9 | (71.3-76.4) |  | 24.9 | (22.3-27.8) |  | 1.5 | (1.2-1.8) |  | 106.7 | (80.6-141.2) | 161.2 | (125.8-206.4) |  |
 | T3 | 49 | 77.8 | (74.3-81.2) |  | 26.5 | (22.8-30.8) |  | 1.0 | (0.8-1.3) |  | 140.9 | (96.6-205.5) | 148.0 | (106.1-206.6) |  |
Packyears of smoking | none | 191 | 70.0 | (68.3-71.7) | †| 29.2 | (27.1-31.4) | †| 1.7 | (1.5-2.0) | †| 134.3 | (111.5-161.7) | 232.6 | (197.6-274.0) | ‡ |
 | T1 | 237 | 70.9 | (69.3-72.4) |  | 26.0 | (24.3-27.8) |  | 1.7 | (1.5-1.9) |  | 104.5 | (88.4-123.5) | 176.2 | (152.1-204.1) |  |
 | T2 | 229 | 70.8 | (69.3-72.4) |  | 24.7 | (23.1-26.4) |  | 1.7 | (1.5-1.9) |  | 91.5 | (77.2-108.5) | 158.5 | (136.5-184.0) |  |
 | T3 | 233 | 73.8 | (72.3-75.3) |  | 25.3 | (23.7-27.0) |  | 1.3 | (1.2-1.5) |  | 115.9 | (97.9-137.2) | 152.7 | (131.7-177.1) |  |
Alcohol (g/d) | none | 190 | 71.4 | (69.7-73.1) | Â | 25.7 | (23.9-27.6) | Â | 1.4 | (1.3-1.6) | Â | 109.9 | (91.2-132.5) | 159.1 | (135.0-187.6) | Â |
 | T1 | 237 | 71.5 | (70.0-73.1) |  | 25.6 | (23.9-27.3) |  | 1.7 | (1.5-1.9) |  | 101.0 | (85.4-119.5) | 170.6 | (147.2-197.9 |  |
 | T2 | 226 | 69.9 | (68.3-71.5) |  | 27.7 | (25.9-29.6) |  | 1.6 | (1.4-1.8) |  | 129.6 | (109.2-153.8) | 204.7 | (176.0-238.0) |  |
 | T3 | 237 | 72.7 | (71.2-74.3) |  | 25.6 | (24.0-27.4) |  | 1.7 | (1.5-1.9) |  | 101.0 | (85.3-119.5) | 168.6 | (145.3-195.7) |  |
Dietary pattern index | Q1 | 252 | 72.2 | (70.7-73.8) | Â | 25.1 | (23.5-26.8) | Â | 1.5 | (1.4-1.7) | Â | 105.6 | (89.4-124.7) | 164.0 | (141.6-189.9) | Â |
 | Q2 | 215 | 71.6 | (69.9-73.2) |  | 27.6 | (25.8-29.6) |  | 1.7 | (1.6-2.0) |  | 116.4 | (97.6-138.8) | 204.2 | (174.8-238.4) |  |
 | Q3 | 194 | 72.1 | (70.4-73.8) |  | 25.6 | (23.8-27.5) |  | 1.7 | (1.5-1.9) |  | 100.1 | (83.1-120.5) | 169.9 | (144.2-200.1) |  |
 | Q4 | 230 | 70.0 | (68.4-71.5) |  | 26.3 | (24.6-28.2) |  | 1.4 | (1.3-1.6) |  | 115.1 | (96.9-136.8) | 166.5 | (143.0-193.9) |  |