Skip to main content
. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Int J Cardiol. 2012 Jun 16;167(5):2102–2107. doi: 10.1016/j.ijcard.2012.05.110

Table 3.

Linear regression analyses of DHA and physical activity as predictors of indices of heart rate variability

Model Heart rate SDNN RMSSD High frequency Low frequency Low-to-high frequency ratio

β p β p β p β p β p β p
1 DHA 0.188 0.002 0.124 0.04 0.121 0.04 0.022 0.67 0.027 0.63 −0.012 0.84
2 Physical activity 0.216 <0.001 0.095 0.12 0.133 0.03 0.015 0.78 −0.084 0.14 −0.097 0.10
3 DHA 0.162 0.007 0.114 0.06 0.105 0.08 0.020 0.69 0.039 0.49 0.001 0.99
Physical activity 0.194 0.002 0.079 0.19 0.118 0.05 0.012 0.82 −0.089 0.12 −0.097 0.11
4 DHA 0.159 0.008 0.109 0.07 0.100 0.08 0.016 0.75 0.039 0.50 0.004 0.94
Physical activity 0.194 0.001 0.079 0.19 0.118 0.05 0.012 0.82 −0.089 0.12 −0.097 0.10
Interaction 0.107 0.07 0.169 0.004 0.156 0.007 0.131 0.009 0.016 0.77 −0.104 0.08