Table 3
Estimation of coefficients of linear model fitted to data in fig 2
SBP
Coefficient
Std error
t
statistic
Probability
95% CI
Mean Square Error (that is, SD(r)) = 8.3 mm.
Age
1.81
0.0963
18.75
<0.001
1.62 to 2.00
Group
−6.93
2.3973
−2.89
0.004
−11.66 to −2.19
Constant
53.28
3.1976
16.66
<0.001
46.97 to 59.59