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. 2013 Oct 14;6:298. doi: 10.1186/1756-3305-6-298

Table 1.

The mean and standard error of chronological age predictions using NIRS of female An. arabiensis

Predictions from pre-gravidae calibration
 Pre-gravid
 Virgin
 1st oviposition
 2nd oviposition
  
  n Prediction n Prediction n Prediction n Prediction p-values
Chronological age
  
  
  
  
  
  
  
  
  
3 days-old
 58
 NA
 43
 (4.4) ±1.65
 -
 -
 -
 -
 -
5 days-old
 43
 NA
 39
 (5.5) ± 1.25
 38
 (5.6) ±1.44
 -
 -
 0.641
8 days-old
 38
 NA
 26
 (7.6) ± 1.54
 47
 (6.4) ± 0.95
 -
 -
 0.014
11 days-old
 48
 NA
 42
 (8.4) ± 1.78
 68
 (7.9) ± 2.12
 69
 (8.6) ±1.61
 0.592
Predictions from a cross-validation
 Pre-gravid
 Virgin
 1st oviposition
 2nd oviposition
  
 
 n
 Prediction
 n
 Prediction
 n
 Prediction
 n
 Prediction
 p-values
Chronological age
  
  
  
  
  
  
  
  
  
3 days-old
 58
 (3.7) ± 1.24
 43
 (4.0) ± 1.23
 -
 -
 -
 -
 0.730
5 days-old
 43
 (5.2) ± 1.77
 39
 (6.1) ± 2.59
 38
 (5.9) ± 1.42
 -
 -
 0.225
8 days-old
 38
 (7.9) ± 1.68
 26
 (6.8) ± 2.14
 47
 (8.0) ± 1.66
 -
 -
 0.850
11 days-old 48 (10.2) ± 2.12 42 (10.4) ± 1.94 68 (10.6) ± 2.62 69 (9.91) ± 2.90 0.099

The p-values were generated from a generalized linear model fitted to a Gaussian distribution analyzing differences between age predictions of mosquitoes at different physiological stages but within the same age group.