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. 2019 Feb 8;79:236–243. doi: 10.1016/j.bbi.2019.02.006

Table 1.

Effects of having a respiratory infection (RI) and of days with infection on body temperature and symptoms of sickness. The left part concerns the effects of condition and weekdays, and the right part the effects of condition and days with infection/being healthy.

Fixed effects Mixed effects ANOVA (Effect of condition and weekday)
Fixed effects Mixed effects ANOVA (Effect of condition and days with infection/being healthy)
Body temperature
Symptoms
Body temperature
Symptoms
F p-value F p-value F p-value F p-value
Condition 1.4 0.248 102.04 <0.001 *** Condition 1.29 0.267 106.11 <0.001 ***
Weekday 3.6 0.002 ** 0.47 0.829 Days 1.85 0.093 21.16 <0.001 ***
Time of day 9.75 0.004 ** 0.22 0.643 Time of day 8.41 0.007 ** 0.17 0.680



Condition:
Weekday
0.62 0.713 1.35 0.232 Condition:
Days
1.35 0.234 45.97 <0.001 ***
Condition:
Time of day
0.46 0.500 1.04 0.308 Days:
Time of day
0.51 0.804 0.38 0.890
Weekday:
Time of day
2.25 0.038 * 0.76 0.601 Condition:
Time of day
0.97 0.326 2.78 0.096
Condition:
Weekday:
Time of day
0.87 0.518 0.86 0.526 Condition:
Days:
Time of day
1.59 0.149 1.61 0.143



Random effects SD N SD N Random effects SD N SD N

Condition: Subjects 0.165 54 1.776 54 Condition: Subjects 0.168 54 1.798 54
Weekday: Subjects 0.063 196 0.802 196 Days: Subjects 0.059 196 0.841 196
Time of day: Subjects 0.127 56 0.151 56 Time of day: Subjects 0.128 56 0.499 56
Subjects 0.242 28 0.540 28 Subjects 0.241 28 0.523 28



Residual 0.305 703 2.437 708 Residual 0.307 703 1.753 708

The ANOVAs include the fixed effects of condition (period with RI vs healthy period), time of day (morning and evening), and weekday effects (in the left panel) and days with sickness or being healthy (in the right panel). The weekday effect is added as a factor to account for that subjects got sick at different days of the week. P-values have been calculated using Kenward-Roger adjusted denominator degrees of freedoms.