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Table 1 Sample characteristics over three surveys with age and gender adjusted mean with 95% confidence intervals. The Tromsø Study 1994–2008

From: A prospective study on the effect of self-reported health and leisure time physical activity on mortality among an ageing population: results from the Tromsø study

  Tromsø4 1994–1995 Tromsø5 2001–2002 Tromsø6 2007–2008 P-value
Freq. Percent Adjusted rate 95% CI Freq. Percent Adjusted rate 95% CI Freq. Percent Adjusted rate 95% CI
Self-reported health
Poor 598 0.024 0.029 0.026 0.031 120 0.020 0.014 0.010 0.018 540 0.051 0.044 0.040 0.048 < 0.001
Not so good 6894 0.278 0.318 0.312 0.324 1982 0.325 0.269 0.252 0.287 2989 0.284 0.249 0.240 0.259
Good 13,750 0.554 0.533 0.527 0.540 3346 0.549 0.525 0.504 0.547 5443 0.517 0.495 0.484 0.506
Very good 3589 0.145 0.120 0.116 0.124 645 0.106 0.110 0.094 0.126 1562 0.148 0.151 0.143 0.160
Light physical activity
None 3018 0.123 0.133 0.129 0.138 464 0.081 0.058 0.052 0.065 50 0.012 0.009 0.006 0.012 < 0.001
  < 1 h/week 3823 0.154 0.148 0.144 0.153 672 0.117 0.126 0.109 0.143 1260 0.292 0.322 0.302 0.342
1-2 h/week 8365 0.337 0.327 0.321 0.333 1944 0.334 0.302 0.283 0.322 998 0.233 0.219 0.200 0.237
  ≥ 3 h/week 9543 0.385 0.391 0.385 0.398 2745 0.468 0.436 0.415 0.458 1951 0.462 0.372 0.356 0.389
Hard physical activity
Sedentary 12,459 0.502 0.549 0.543 0.555 2257 0.370 0.299 0.281 0.317 2129 0.202 0.193 0.184 0.202 < 0,001
Some high intensity 4987 0.201 0.183 0.178 0.188 1674 0.275 0.277 0.256 0.298 6340 0.602 0.540 0.529 0.551
Moderate high intensity 4885 0.197 0.177 0.173 0.182 1488 0.244 0.246 0.225 0.267 1893 0.180 0.185 0.176 0.194
Vigorous high intensity 2500 0.101 0.091 0.087 0.094 674 0.111 0.096 0.084 0.108 172 0.016 0.021 0.017 0.025
Smoking
Daily smokers 9019 0.363 0.357 0.351 0.363 1714 0.274 0.286 0.264 0.309 2076 0.190 0.154 0.145 0.163 < 0.001
  Count Mean Adjusted rate 95% CI Count Mean Adjusted rate 95% CI Count Mean Adjusted rate 95% CI P-value
Comorbidity 24,831 0.950 1.115 1.091 1.138 7004 1.437 1.192 1.138 1.246 9488 1.401 1.283 1.247 1.319 < 0.001
BMI 24,831 25.227 25.434 25.382 25.485 7004 26.666 26.354 26.198 26.510 9488 26.929 26.716 26.617 26.816 < 0.001
RHR 24,831 72.467 72.723 72.556 72.890 7004 70.085 70.055 69.512 70.597 9488 64.957 64.760 64.523 64.996 < 0.001
SBP 24,831 135.144 138.255 137.998 138.511 7004 137.007 133.643 132.957 134.329 9488 135.451 132.603 132.219 132.987 < 0.001
Total cholesterol 24,831 6.088 6.267 6.251 6.283 7004 6.099 6.032 5.993 6.071 9488 5.612 5.505 5.482 5.528 < 0.001
  1. SRH self-reported health, PA physical activity, BMI body mass index, RHR resting heart rate, SBP systolic blood pressure, CI 95% confidence intervals, Adj.rate age and gender standarized rates
  2. P-value is based on chi square. SRH: Pearson chi2(6) = 324.5484, p < 0.001; Hard physical activity: Pearson chi2(6) = 6.3e+ 03, p < 0.001; Light physical activity Pearson chi2(6) = 1.2e+ 03, p < 0.001; Daily smokers Pearson chi2(2) = 981.7926, p < 0.001. P-value for the continuous variables are based upon ANOVA grouped on survey time: Comorbidity: F(2) = 385.46, p < 0.001; BMI: F (2) = 699.31, p < 0.001; RHR: F (2) = 1481.70, p < 0.001; SBP: F (2) = 26.44, p < 0.001; Tot.cholesterol F (2) = 612.58, p < 0.001