Table 2.
Longitudinal changes in waist circumference, prevalence of abdominal obesitya between 1994–1995 and 2007–2008 in 3,144 subjects. The Tromsø Study
| Tromsø 4 (1994–1995) | Tromsø 6 (2007–2008) | Changes between Tromsø 4 and Tromsø 6 | |||||
|---|---|---|---|---|---|---|---|
| Age in 1994 (birth year) | n | Mean (SD)b | % obese | Mean (SD) | % obese | Mean (95 % CI)c | Absolute change in % obese (relative to 1994, %) |
| Men | |||||||
| 25–34 (1960–69) | 62 | 88.4 (7.8) | 4.8 | 98.2 (10.0) | 30.7 | 9.8 (7.9, 11.6) | 25.8 (+538 %) |
| 35–44 (1950–59) | 89 | 90.9 (7.4) | 7.9 | 98.2 (9.1) | 33.7 | 7.3 (5.8, 8.8) | 25.8 (+327 %) |
| 45–54 (1940–49) | 326 | 96.1 (8.5) | 21.8 | 102.3 (10.5) | 46.6 | 6.2 (5.5, 7.0) | 24.8 (+114 %) |
| 55–64 (1930–39) | 850 | 94.8 (8.2) | 18.0 | 100.6 (10.2) | 40.4 | 5.8 (5.3, 6.3) | 22.4 (+124 %) |
| 65–69 (1925–29) | 182 | 95.1 (7.8) | 17.6 | 100.8 (11.0) | 43.4 | 5.7 (4.7, 6.8) | 25.8 (+147 %) |
| Total | 1,509 | 94.6 (8.3) | 17.6 | 100.8 (10.4) | 41.3 | 6.1 (5.8, 6.5) | 23.7 (+135 %) |
| Women | |||||||
| 25–34 (1960–69) | 76 | 76.9 (9.1) | 10.5 | 86.3 (10.1) | 36.8 | 9.4 (7.4, 11.4) | 26.3 (+250 %) |
| 35–44 (1950–59) | 134 | 79.2 (9.9) | 14.9 | 91.3 (12.3) | 57.5 | 12.1 (10.6, 13.6) | 42.5 (+285 %) |
| 45–54 (1940–49) | 158 | 80.7 (8.6) | 17.7 | 90.2 (10.0) | 58.2 | 9.6 (8.3, 10.8) | 40.5 (+229 %) |
| 55–64 (1930–39) | 973 | 83.8 (9.8) | 26.6 | 91.9 (11.6) | 61.4 | 8.1 (7.5, 8.6) | 34.7 (+130 %) |
| 65–69 (1925–29) | 294 | 86.5 (9.7) | 42.9 | 93.3 (12.0) | 64.0 | 6.8 (5.8, 7.8) | 21.1 (+49 %) |
| Total | 1,635 | 83.3 (9.9) | 27.0 | 91.7 (11.6) | 60.1 | 8.4 (8.0, 8.8) | 33.1 (+123 %) |
aWaist circumference > 102 cm in men and > 88 cm in women
bcentimeter (standard deviation)
cMean change in centimetre (95 % confidence interval)