Skip to main content
. 2013 Mar 6;8(3):e56519. doi: 10.1371/journal.pone.0056519

Table 3. Food intake parameters of study participants divided by chronotype on working vs. non-working days.

Working day Non-working day
Morning type Evening type p-value Morning type Evening type p-value
Total food intake (kcal) 2129±631 2276±815 0.373 2383±928 2378±883 0.922
Portion size (kcal) 461±177 545±219 0.065 599±273 622±380 0.751
Eating occasions per day (n) 4.9±1.5 4.4±1.5 0.175 4.2±1.2 4.3±1.6 0.568
First eating occasion (h:min) 7∶17±1∶31 8∶38±1∶52 <0.001 8∶56±2∶30 9∶59±2∶32 0.075
Food intake after 20∶00 (kcal) 299±354 677±460 <0.001 327±354 537±480 0.028
Food intake after 20∶00 (% of total caloric intake) 14±15 30±18 <0.001 14±15 24±20 0.009

Values are means ± SD. Intake parameters of chronotypes were compared with t-tests on working and non-working days separately. Significant p-values (<0.05) are bolded.