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. 2018 Sep 13;126(9):097005. doi: 10.1289/EHP3550

Table 4.

Statistical outcomes for physiological data in F2 female and male rats.

Measure Treatment Mean±SEM N F (df) for ANOVA; Chi square (df) for Kruskal-Wallis p-Value Effect sizes: partial-eta-square (ANOVA); Episilon-square (Kruskal-Wallis) Post hocs Outliers (n, if any)
Vaginal opening (days of age)
Maternal females VEH 33.9±0.5 13 F(2,39)=0.79 0.46 0.04   2
A1221 33.5±0.6 12      
VIN 33.1±0.3 17      
Paternal females VEH 34.9±0.2 17 F(2,45)=8.27 0.001 0.27
  • A1221<VEH, p=0.001

  • VIN<VEH, p=0.009

2  
A1221 33.3±0.4 16    
VIN 33.6±0.3 15    
Preputial separation (days of age)  
Maternal males VEH 44.2±0.1 13 X2(2)=2.06 0.36 0.05   2  
A1221 44.6±0.6 13      
VIN 44.0±0.3 16   2  
Paternal males VEH 43.5±0.2 19 X2(2)=1.04 0.60 0.02      
A1221 43.6±0.2 16   2  
VIN 43.8±0.3 22      
Adrenosomatic index  
Maternal females VEH 0.23±0.01 11 F(2,36)=2.59 0.09 0.13 No post hoc differences 2  
A1221 0.21±0.01 10    
VIN 0.21±0.01 18    
Paternal females VEH 0.17±0.01 11 F(2,27)=2.80 0.46 0.06      
A1221 0.19±0.01 10    
VIN 0.17±0.01 9    
Maternal males VEH 0.12±0.00 10 F(2,29)=4.37 0.02 0.23
  • VEH<A1221, p=0.037

  • VIN<A1221, p=0.037

1  
A1221 0.13±0.01 9    
VIN 0.12±0.00 13 1  
Paternal males VEH 0.12±0.00 13 F(2,37)=8.75 0.001 0.32
  • VIN<VEH, p<0.001

  • VIN<A1221, p=0.035

   
A1221 0.11±0.00 12    
VIN 0.10±0.00 15    
Gonadosomatic index  
Maternal females VEH 0.05±0.00 10 F(2,37)=0.11 0.89 0.01      
A1221 0.05±0.00 12    
VIN 0.05±0.00 18    
Paternal females VEH 0.04±0.00 10 F(2,26)=0.08 0.92 0.01      
A1221 0.04±0.00 10    
VIN 0.04±0.00 9    
Maternal males VEH 0.93±0.03 11 F(2,31)=1.70 0.20 0.10   1  
A1221 0.86±0.02 9    
VIN 0.89±0.03 14    
Paternal males VEH 0.91±0.02 13 F(2,36)=4.08 0.03 0.18 VIN<VEH, p=0.021 2  
A1221 0.86±0.02 11 1  
VIN 0.84±0.02 15    
Corticosterone (ng/mL)  
Maternal females VEH 924±45 10 F(2,27)=1.24 0.31 0.08      
A1221 889±36 9    
VIN 810±68 11    
Paternal females VEH 820±60 11 F(2,26)=0.22 0.81 0.02      
A1221 776±43 9    
VIN 805±26 9 1  
Maternal males VEH 352±83 10 F(2,26)=0.92 0.41 0.07      
A1221 501±91 9    
VIN 398±61 10    
Paternal males VEH 446±55 10 F(2,25)=0.79 0.46 0.06      
A1221 427±67 10    
VIN 348±36 8 2  
Estradiol (pg/mL)  
Maternal females VEH 31.2±4.5 10 F(2,25)=0.06 0.94 0.00      
A1221 31.7±2.6 8 1  
VIN 30.0±3.1 10 1  
Paternal females VEH 4.5±1.1 11 F(2,28)=0.54 0.59 0.04      
A1221 4.2±0.7 10    
VIN 5.5±0.8 10    
Maternal males VEH 7.8±0.3 10 F(2,25)=1.05 0.37 0.08      
A1221 7.9±0.4 8 1  
VIN 8.8±0.8 10    
Paternal males VEH 11.6±1.2 10 F(2,26)=3.64 0.04 0.22 VIN<VEH, p=0.034    
A1221 9.5±0.7 10    
VIN 8.2±0.5 9 1  
Testosterone (ng/mL)  
Maternal males VEH 0.7±0.1 8 F(2,24)=0.53 0.60 0.04   2  
A1221 1.0±0.2 9    
VIN 1.0±0.3 10    
Paternal males VEH 1.6±0.2 10 F(2,26)=5.18 0.01 0.28
  • A1221<VEH, p=0.050

  • A1221<VIN, p=0.014

   
A1221 0.9±0.1 9 1  
VIN 1.7±0.3 10    

Note: Data are shown as mean±  SEM. Statistics are presented with F-(ANOVA) or Chi-square values (Kruskal-Wallis). Degrees of freedom (df) are shown parenthetically. An effect size of 0.14 is large, and between 0.06 and 0.13 is medium. Numbers of outliers in a group (up to 2 calculated by the Grubb’s test) are indicated. Adrenosomatic index was calculated as: [Adrenal   weight/body   weight]×100; gonadosomatic index was calculated as: (Gonad   weight/body   weight)×1,000. A1221, Aroclor 1221; VEH, vehicle; VIN, vinclozolin.