Table 4.
Meal effect on ghrelin secretion according sex and time
Ghrelin (ng/ml) | |
---|---|
Sexa | |
Men | − 0.30 |
[− 0.75,0.16] | |
Timeb | |
60 min | − 0.56*** |
[− 0.68,− 0.44] | |
120 min | − 0.70*** |
[− 0.82,− 0.58] | |
180 min | − 0.58*** |
[− 0.70,− 0.46] | |
Sex*time interactionc | |
Men*Time (60 min) | 0.21* |
[0.04,0.38] | |
Men*time (120 min) | 0.29*** |
[0.12,0.45] | |
Men*time (180 min) | 0.23** |
[0.06,0.39] | |
Interceptd | |
Constant | 1.40*** |
[1.08,1.72] |
Values are coefficients obtained from mixed-effects linear regression models
To obtain the mean values of ghrelin over time, the coefficients shown in the table can be entered into the following sex-specific equations:
Women: constant + time (at a specific time point)
Men: constant + sex + time (at a specific time point) + interaction (at a specific time point)
aThe effect of male sex on ghrelin at baseline. It represents how much the basal ghrelin concentration differed in men compared with women
bThe effect of time on ghrelin concentration. It represents how much ghrelin concentration has changed over time from baseline in women
cThe effect of male sex on ghrelin concentration over time. It represents how much the ghrelin changes from baseline in men differed from the changes observed in women over the same time frame
dThe intercept represents the baseline ghrelin concentration in women
*p < 0.05, **p < 0.01, ***p < 0.001