Table 1.
Baseline characteristics of participating elderly men and women according to mortality status during follow-up. Participants from the Tromsø (1994–1995) and HUNT (1995–1997) studies
| Characteristic | Men |
Women |
||||
| Survivors | Non-survivors | p Value* | Survivors | Non-survivors | p Value* | |
| Number of subjects | 3687 | 3917 | 5550 | 3557 | ||
| Person-years of follow-up | 43233 | 25457 | 65267 | 24993 | ||
| Age at inclusion, mean (SD) | 70.4 (4.2) | 75.1 (6.2) | <0.001† | 71.4 (4.8) | 76.8 (6.2) | <0.001† |
| BMI (kg/m2), mean (SD) | 26.6 (3.3) | 26.2 (3.7) | <0.001† | 27.5 (4.4) | 27.2 (4.9) | 0.001† |
| BMI, % (n) | ||||||
| <20.0 | 1.3 (49) | 3.5 (136) | <0.001‡ | 2.5 (139) | 4.9 (174) | <0.001‡ |
| 20.0–24.9 | 29.8 (1100) | 33.9 (1329) | 26.5 (1472) | 30.2 (1075) | ||
| 25.0–29.9 | 54.5 (2009) | 48.1 (1885) | 44.9 (2492) | 39.1 (1390) | ||
| ≥30.0 | 14.4 (529) | 14.4 (567) | 26.1 (1447) | 25.8 (918) | ||
| Currently married, % (n) | 80.2 (2957) | 70.0 (2743) | <0.001‡ | 55.0 (3052) | 36.7 (1306) | <0.001‡ |
| Lower education, % (n) | 56.3 (2076) | 63.6 (2493) | <0.001‡ | 76.9 (4269) | 82.0 (2918) | <0.001‡ |
| Smoking status, % (n) | ||||||
| Never smoked | 21.5 (793) | 19.4 (760) | <0.001‡ | 61.0 (3386) | 64.0 (2276) | <0.001‡ |
| Stopped ≥20 years ago | 31.6 (1165) | 26.2 (1026) | 9.1 (507) | 6.2 (222) | ||
| Stopped 10–19 years ago | 13.4 (494) | 14.7 (577) | 9.4 (524) | 8.3 (296) | ||
| Stopped <10 years ago | 10.0 (369) | 11.4 (445) | 4.6 (258) | 4.9 (173) | ||
| Current <10 cigarettes/day | 9.0 (332) | 10.0 (391) | 8.7 (485) | 8.5 (304) | ||
| Current ≥10 cigarettes/day | 14.5 (534) | 18.3 (718) | 7.0 (390) | 8.0 (286) | ||
*
p Value for differences between groups using the †t test or ‡χ2 test.
BMI, body mass index; HUNT, the North-Trøndelag Health Study.