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Table 1 Results of the GLMM

From: Seasonal and inter-annual variation of malaria parasite detection in wild chimpanzees

Term

Estimate

SE

χ 2

Df

P

(Intercept)

− 3.442

3.291

  

a

Sex

0.626

0.387

2.771

1

0.096

Agee

− 0.691

0.249

8.082

1

0.004

Collection datee

0.075

1.969

0.001

1

0.970

Sampling period 2b

1.531

2.149

43.657

3

< 0.001c

Sampling period 3b

1.862

3.645

   

Sampling period 4b

− 0.928

5.163

   

Collection date (sin)

− 0.353

0.227

9.240

2

0.010d

Collection date (cos)

0.707

0.290

   

Collection timee

0.165

0.161

0.945

1

0.331

  1. aNot indicated due to having a very limited interpretation
  2. bDummy coded with Sampling period 1 (2005–2006) as the reference category
  3. cThe indicated test refers to the overall effect of Sampling periods
  4. dThe indicated test refers to the overall effect of Seasonality
  5. ez-transformed to a mean of zero and standard deviation of one; mean (sd) of original variables were 17.7 (13.1) years (age), 2011-05-26 (1307) days (collection date), and 10.9 (2.9) h (collection time), respectively
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Malaria Journal

ISSN: 1475-2875

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