Project measure / variable:   Seburn2   rear_track_width_R_M18

ID, description, units MPD:24875   rear_track_width_R_M18   front track width, mean distance between rear paws at midpoint of stance phase   [mm]  at age 18mo  
Data set, strains Seburn2   inbred   3 strains     sex: both     age: 78wks
Procedure gait analysis
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  STRAIN COMPARISON PLOT
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Seburn2 - front track width, mean distance between rear paws at midpoint of stance phase at age 18mo



  MEASURE SUMMARY
Measure Summary FemaleMale
Number of strains tested3 strains3 strains
Mean of the strain means21.9   mm 20.4   mm
Median of the strain means22.0   mm 18.9   mm
SD of the strain means± 1.45 ± 3.41
Coefficient of variation (CV)0.0663 0.167
Min–max range of strain means20.4   –   23.3   mm 18.0   –   24.3   mm
Mean sample size per strain5.3   mice 6.3   mice


  ANOVA, Q-Q NORMALITY ASSESSMENT
ANOVA summary      
FactorDFSum of squaresMean sum of squaresF valuep value (Pr>F)
sex 1 15.3323 15.3323 3.3281 0.0784
strain 2 145.5879 72.794 15.8008 < 0.0001
sex:strain 2 30.4215 15.2108 3.3017 0.0511
Residuals 29 133.6023 4.607


Q-Q normality assessment based on residuals

  


  STRAIN MEANS (UNADJUSTED)
  
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Strain Sex Mean SD N mice SEM CV Min, Max Z score
C57BL/10J f 23.3 2.65   6 1.08 0.114 19.5, 26.8 0.96
C57BL/10J m 24.3 1.71   7 0.648 0.0704 21.2, 26.2 1.14
DBA/2J f 20.4 2.44   5 1.09 0.12 16.6, 23.1 -1.03
DBA/2J m 18.0 2.05   5 0.915 0.114 15.2, 19.9 -0.7
NON/ShiLtJ f 22.0 2.52   5 1.13 0.115 18.4, 24.9 0.07
NON/ShiLtJ m 18.9 1.58   7 0.597 0.0838 16.2, 20.7 -0.44


  LEAST SQUARES MEANS (MODEL-ADJUSTED)
Strain Sex Mean SEM UpperCL LowerCL
C57BL/10J f 23.3 0.8762586537 25.0921501728 21.5078498272
C57BL/10J m 24.3428571429 0.8112578742 26.0020657946 22.6836484911
DBA/2J f 20.4 0.9598932617 22.3632021521 18.4367978479
DBA/2J m 18.0 0.9598932617 19.9632021521 16.0367978479
NON/ShiLtJ f 21.98 0.9598932617 23.9432021521 20.0167978479
NON/ShiLtJ m 18.8571428571 0.8112578742 20.5163515089 17.1979342054


  LEAST SQUARES MEANS (MODEL-ADJUSTED), SEXES COMBINED
Strain Sex Mean SEM UpperCL LowerCL
C57BL/10J both 23.8214285714 0.5970696288 25.0425730748 22.6002840681
DBA/2J both 19.2 0.6787470346 20.5881935546 17.8118064454
NON/ShiLtJ both 20.4185714286 0.6283976473 21.7037889238 19.1333539333




GWAS analysis not available: At least 4 strains are required