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Table 1 The mean and standard error of chronological age predictions using NIRS of female An. arabiensis

From: The influence of physiological status on age prediction of Anopheles arabiensis using near infra-red spectroscopy

Predictions from pre-gravidae calibration Pre-gravid Virgin 1stoviposition 2ndoviposition  
  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 1 st oviposition 2 nd 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
  1. 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.