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Table 2 Cross section of Self-reported health for BMI and 10-year age groups for Tromsø 3-6

From: What is the impact of underweight on self-reported health trajectories and mortality rates: a cohort study

  <18,5 Kg/m2 18,5-22,99 Kg/m2 23-24,99 Kg/m2 25-29,99 Kg/m2 >30 Kg/m2 p-value
  Count Mean (SD.) Count Mean (SD.) Count Mean (SD.) Count Mean (SD.) Count Mean (SD.)
Tromsø 3
 25-29 88 3.09 (0.64) 1529 3.24 (0.68) 692 3.29 (0.68) 483 3.20 (0.70) 86 3.05 (0.78) 0.008
 30-39 138 3.00 (0.74) 31 3.13 (0.70) 1681 3.18 (0.70) 1624 3.06 (0.71) 250 2.80 (0.74) <0.001
 40-49 44 2.67 (0.79) 1626 3.00 (0.74) 1338 3.04 (0.73) 1779 2.95 (0.73) 331 2.85 (0.75) <0.001
 50-59 27 2.33 (0.87) 741 2.75 (0.81) 777 2.87 (0.79) 1166 2.81 (0.81) 248 2.58 (0.83) <0.001
 60-69 2 1.00   79 2.62 (0.82) 100 2.60 (0.81) 174 2.73 (0.77) 30 3.00 (0.65) 0.031
Tromsø 4
 25-29 51 2.94 (0.68) 993 3.18 (0.64) 600 3.21 (0.64) 685 3.13 (0.63) 147 2.90 (0.63) <0.001
 30-39 70 3.03 (0.59) 2138 3.12 (0.65) 1468 3.10 (0.64) 1784 3.04 (0.61) 396 2.85 (0.66) <0.001
 40-49 61 2.67 (0.86) 1853 2.92 (0.66) 1588 2.92 (0.64) 2485 2.89 (0.62) 646 2.70 (0.66) <0.001
 50-59 41 2.49 (0.75) 829 2.69 (0.70) 1011 2.78 (0.67) 1914 2.71 (0.65) 610 2.55 (0.66) <0.001
 60-69 41 2.17 (0.77) 599 2.50 (0.64) 615 2.52 (0.63) 1364 2.53 (0.63) 469 2.38 (0.62) <0.001
 70-79 46 1.96 (0.79) 408 2.40 (0.69) 387 2.45 (0.68) 925 2.42 (0.65) 372 2.28 (0.68) <0.001
  > 80 17 2.00 (0.61) 138 2.26 (0.68) 120 2.41 (0.69) 234 2.28 (0.60) 90 2.18 (0.61) 0.034
Tromsø 5
 30-39 8 2.75 (0.71) 167 3.14 (0.68) 135 3.13 (0.60) 177 3.05 (0.61) 73 2.99 (0.52) 0.163
 40-49 4 2.75 (0.50) 323 3.00 (0.67) 300 3.07 (0.67) 547 2.99 (0.63) 178 2.82 (0.61) 0.002
 50-59 7 2.71 (0.76) 156 2.66 (0.69) 197 2.78 (0.65) 481 2.71 (0.62) 237 2.59 (0.62) 0.038
 60-69 29 2.34 (0.77) 369 2.64 (0.65) 502 2.71 (0.66) 1234 2.69 (0.63) 549 2.51 (0.59) <0.001
 70-79 35 2.21 (0.69) 311 2.46 (0.61) 358 2.59 (0.64) 846 2.54 (0.62) 392 2.40 (0.59) <0.001
  > 80 3 1.33 (0.58) 52 2.45 (0.68) 42 2.54 (0.60) 107 2.42 (0.66) 55 2.31 (0.60) 0.024
Tromsø 6
 30-39 2 3.00 (0.00) 111 3.04 (0.82) 93 3.04 (0.69) 166 2.96 (0.65) 85 2.71 (0.72) 0.012
 40-49 13 3.08 (0.76) 549 3.11 (0.80) 545 3.01 (0.74) 1115 2.94 (0.73) 500 2.66 (0.73) <0.001
 50-59 12 2.50 (0.90) 424 2.97 (0.83) 471 2.87 (0.75) 1085 2.79 (0.76) 443 2.58 (0.76) <0.001
 60-69 22 2.14 (0.85) 555 2.80 (0.77) 659 2.81 (0.70) 1926 2.70 (0.73) 935 2.49 (0.71) <0.001
 70-79 24 2.29 (0.91) 265 2.47 (0.76) 320 2.61 (0.67) 831 2.63 (0.70) 382 2.37 (0.76) <0.001
  > 80 7 1.86 (0.69) 92 2.46 (0.72) 87 2.37 (0.72) 232 2.41 (0.74) 109 2.26 (0.71) 0.099
  1. p-value is based on ANOVA. There was a significant effect of BMI for most age groups. Planned contrasts show that overweight and underweight significantly lowered the SRH, while the differences within the normal range for most groups did not show significant differences