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Table 2 Vertebra specific two-way analysis of variance for height, thickness, and slenderness ratios

From: Structural and micro-anatomical changes in vertebrae associated with idiopathic-type spinal curvature in the curveback guppy model

VERTEBRAL POSITION HEIGHT RATIO THICKNESS RATIO SLENDERNESS RATIO
  sex curve sex*curve sex curve sex*curve sex curve sex*curve
1 0.087 < 0.0001 0.140 < 0.0001 0.0419 0.137 0.346 0.0139 0.0202
2 0.066 0.0002 0.301 0.0003 .0690 0.071 0.076 0.0482 0.161
3 0.398 0.0059 0.863 0.0014 0.183 0.142 0.0018 0.508 0.0426
4 0.495 0.0004 0.669 0.0132 0.0078 0.383 0.0053 0.260 0.0202
5 0.963 0.0004 0.489 0.0021 0.0035 0.330 0.0002 0.565 0.0160
6 0.460 0.0390 0.702 0.0280 0.185 0.737 0.457 0.965 0.0156
7 0.761 0.0038 0.948 0.0186 0.078 0.719 0.302 0.319 0.0038
8 0.734 0.0141 0.730 0.078 0.0250 0.576 0.781 0.401 0.632
9 0.151 0.750 0.645 0.0230 0.0041 0.976 0.095 0.199 0.140
10 0.299 0.0261 0.893 0.270 0.0045 0.713 0.567 0.792 0.280
11 0.0432 0.0002 0.058 0.137 0.0163 0.575 0.743 0.330 0.290
12 0.066 0.0002 0.076 0.272 0.058 0.477 0.150 0.533 0.595
13 0.312 0.0015 0.708 0.291 0.0265 0.995 0.130 0.150 0.099
14 0.0393 0.0482 0.689 0.217 0.212 0.984 0.746 0.808 0.782
15 0.497 0.873 0.260 0.104 0.0309 0.857 0.877 0.233 0.866
  1. Significant interactions (sex*vertebral position and vertebral position*curvature) for the height ratio (Figure 4) motivated us to investigate each vertebra using a two-way ANOVA. Also, because the thickness and slenderness ratios had a significant sex*curvature interaction, they were further investigated using a two-way ANOVA on data for each vertebra. Significant results are shown in bold, (significance threshold: α = 0.05).