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Table 1 Vertebra specific one-way analysis of variance for length ratio and width ratios.

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

VERTEBRAL POSITION LENGTH RATIO WIDTH RATIO
  non-curved curved significance female male significance
1 0.984(0.02) 0.933(0.02) 0.105 0.917(0.02) 0.968(0.02) 0.114
2 0.992(0.02) 0.964(0.02) 0.243 0.937(0.02) 0.956(0.02) 0.580
3 1.007(0.02) 0.988(0.02) 0.459 0.974(0.03) 0.924(0.02) 0.169
4 1.015(0.02) 1.007(0.02) 0.705 1.016(0.02) 0.954(0.02) 0.057
5 1.012(0.02) 0.994(0.02) 0.486 1.021(0.02) 0.982(0.02) 0.160
6 1.023(0.02) 0.963(0.02) 0.0118 0.978(0.02) 0.989(0.02) 0.694
7 1.031(0.01) 1.028(0.02) 0.891 1.026(0.02) 0.974(0.02) 0.0390
8 1.010(0.02) 1.033(0.02) 0.379 0.994(0.02) 0.971(0.02) 0.332
9 1.021(0.02) 1.055(0.02) 0.238 0.999(0.02) 0.988(0.02) 0.709
10 1.011(0.02) 1.110(0.03) 0.0100 1.064(0.02) 0.988(0.02) 0.0180
11 1.026(0.03) 1.153(0.03) 0.0021 1.045(0.02) 0.984(0.03) 0.088
12 1.039(0.04) 1.135(0.04) 0.080 1.043(0.03) 0.982(0.02) 0.074
13 1.029(0.01) 1.044(0.02) 0.446 1.083(0.03) 1.029(0.03) 0.146
14 1.004(0.02) 1.048(0.02) 0.085 1.094(0.03) 1.084(0.03) 0.822
15 1.002(0.02) 1.010(0.02) 0.743 1.042(0.03) 1.107(0.03) 0.138
  1. Length ratio: because there was a significant interaction between vertebra position (i.e. number in tail) and curvature (see Figure 4), we further compared length ratios among individual vertebrae for curved and non-curved individuals. Width ratio: because there was a significant interaction between sex and vertebra position (see Figure 4), we further investigated the width ratio among individual vertebrae for males and females. Comparisons conducted with one-way ANOVA, (significance threshold: α = 0.05). Significant results are shown in bold. Mean values for each vertebra is shown with the standard error in parenthesises. Standard error was calculated using a pooled estimate of error variance.