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Table 1 ANOVA, contacts in quarter-2 vs. quarter-1

From: Does an increase in visits to general practice indicate a malignancy?

Source

df

Mean square

F statistic

Pr > F

Model

4

3.83

27.91

< 0.0001

Error

9,377

0.14

  

Gender

1

0.07

0.50

0.4773

Case/control

1

14.08

102.55

< 0.0001

Quarter

1

0.30

2.21

0.1376

Case/control*Quarter

1

0.43

3.12

0.0775

  1. 3,310 cases and 3,310 controls
  2. Dependent variable: Number of contacts per quarter, logarithm
  3. Effect size adjusted R2 = 0.0113
  4. * linking two independent variables is to indicate their interaction term included in the ANOVA modelling equation