Table 3 Univariate variance estimates of additive genetic (A), dominant genetic (D), common environmental (C) and unique environmental (E) contributions to habitual physical activity and the intensity and duration of the activities performed
| Â | Model fit | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | 95Â % CI | D | 95Â % CI | C | 95Â % CI | E | 95Â % CI | AIC | |||||
HPA | |||||||||||||
 ACE | 0.54 | 0.00 | 0.74 | – | – | – | 0.03 | 0.00 | 0.61 | 0.43 | 0.26 | 0.70 | 83.11 |
 AE | 0.57 | 0.32 | 0.74 | – | – | – | – | – | – | 0.43 | 0.26 | 0.69 | 81.12 |
 CE | – | – |  | – | – | – | 0.47 | 0.23 | 0.65 | 0.53 | 0.35 | 0.77 | 82.84 |
 E | – | – |  | – | – | – | – | – | – | 1 | – | – | 94.03 |
Low | |||||||||||||
 ACE | |||||||||||||
  Male | 0.38 | 0.11 | 0.38 | – | – | – | 0.00 | 0.00 | 0.05 | 0.62 | 0.62 | 0.82 | −817.92 |
  Female | 0.72 | 0.22 | 0.72 | – | – | – | 0.00 | 0.00 | 0.08 | 0.28 | 0.13 | 0.60 |  |
 AE | |||||||||||||
  Male | 0.38 | 0.18 | 0.59 | – | – | – | – | – | – | 0.62 | 0.41 | 0.82 | −819.92 |
  Female | 0.72 | 0.40 | 0.87 | – | – | – | – | – | – | 0.28 | 0.13 | 0.60 |  |
 CE | |||||||||||||
  Male | – | – | – | – | – | – | 0.24 | 0.07 | 0.46 | 0.76 | 0.54 | 0.93 | −813.94 |
  Female | – | – | – | – | – | – | 0.43 | 0.14 | 0.66 | 0.57 | 0.34 | 0.86 |  |
 E | |||||||||||||
  Male | – | – | – | – | – | – | – | – | – | 1 | – | – | −804.99 |
  Female | – | – | – | – | – | – | – | – | – | 1 | – | – |  |
 ADE | |||||||||||||
  Male | 0.00 | 0.00 | 0.54 | 0.38 | 0.00 | 0.58 | – | – | – | 0.62 | 0.42 | 0.80 | −819.58 |
  Female | 0.00 | 0.00 | 0.84 | 0.74 | 0.00 | 0.87 | – | – | – | 0.26 | 0.15 | 0.54 |  |
Moderate | |||||||||||||
 ACE | 0.55 | 0.00 | 0.73 | – | – | – | – | 0.00 | 0.59 | 0.45 | 0.27 | 0.70 | −34.36 |
 AE | 0.55 | 0.30 | 0.73 | – | – | – | – | – | – | 0.45 | 0.27 | 0.70 | −34.36 |
 CE | – | – | – | – | – | – | 0.46 | 0.22 | 0.64 | 0.54 | 0.36 | 0.78 | −34.29 |
 E | – | – | – | – | – | – | – | – | – | 1 | – | – | −23.52 |
 ADE | 0.27 | 0.00 | 0.72 | 0.29 | 0.00 | 0.73 | – | – | – | 0.44 | 0.27 | 0.70 | −34.44 |
High | |||||||||||||
 ACE | 0.47 | 0.00 | 0.72 | – | – | – | 0.00 | 0.00 | 0.30 | 0.53 | 0.28 | 0.88 | 38.48 |
 AE | 0.47 | 0.12 | 0.72 | – | – | – | – | – | – | 0.53 | 0.28 | 0.88 | 36.48 |
 CE | – | – | – | – | – | – | 0.23 | 0.00 | 0.47 | 0.77 | 0.53 | 1.00 | 40.28 |
 E | – | – | – | – | – | – | – | – | – | 1 | – | – | 41.30 |
 ADE | 0.00 | 0.00 | 0.65 | 0.55 | 0.00 | 0.74 | – | – | – | 0.45 | 0.26 | 0.79 | 36.34 |
| Â | Compared with ACE model | |||||
|---|---|---|---|---|---|---|
−2LL | df | Δχ 2 | df | Δ AIC | P value | |
HPA | ||||||
 ACE | 287.11 | 102 | – | – | – | – |
 AE | 287.12 | 103 | 0.00 | 1 | −2.00 | 0.95 |
 CE | 288.49 | 103 | 1.74 | 1 | −0.26 | 0.19 |
 E | 302.03 | 104 | 14.92 | 2 | 10.92 | 0.001 |
Low | ||||||
 ACE | ||||||
  Male | −615.92 | 101 | – | – | – | – |
  Female |  |  |  |  |  |  |
 AE | ||||||
  Male | −615.92 | 102 | 0 | 1 | −2.00 | 1 |
  Female |  |  |  |  |  |  |
 CE | ||||||
  Male | −609.94 | 102 | 5.99 | 1 | 3.99 | 0.01 |
  Female |  |  |  |  |  |  |
 E | ||||||
  Male | −596.99 | 103 | 18.94 | 3 | 12.94 | 0 |
  Female |  |  |  |  |  |  |
 ADE | ||||||
  Male | −617.58 | 101 | – | – | – | – |
  Female |  |  |  |  |  |  |
Moderate | ||||||
 ACE | 169.64 | 102 | – | – | – | – |
 AE | 169.64 | 103 | 0 | 1 | −2.00 | 1 |
 CE | 171.71 | 103 | 2.07 | 1 | 0.07 | 0.15 |
 E | 184.49 | 104 | 14.85 | 2 | 10.85 | 0.001 |
 ADE | 169.56 | 102 | – | – | – | – |
High | ||||||
 ACE | 242.48 | 102 |  |  |  |  |
 AE | 242.48 | 103 | 0 | 1 | −2.00 | 1 |
 CE | 246.28 | 103 | 3.80 | 1 | 1.80 | 0.05 |
 E | 249.30 | 104 | 6.82 | 2 | 2.82 | 0.03 |
 ADE | 240.34 | 102 | – | – | – | – |