Table 1

Comparisons of fluorescence signals (paw and spine) between wild-type (wt) and ank/ank mice in three different age groups (8, 12, and 18 weeks)

Paw

Spine

n

Mean

signal

95% confidence

intervals

P

n

Mean

signal

95%

confidence

intervals

P

Wt (8 weeks)

4

84.4

67.5-101.2

4

200.2

141.9-258.4

ank/ank (8 weeks)

6

148.4

112.1-184.8

6

319.3

274.9-363.7

Mann-Whitney

U test

0.011^a

0.011^a

wt(12 weeks)

4

64.9

46.1-83.6

4

134.7

93.2-176.1

ank/ank (12 weeks)

4

169.5

111.3-227.8

5

253.7

177.1-330.3

Mann-Whitney

test

0.021^a

0.014^a

Wt (18 weeks)

4

58.9

31.6-86.2

4

130.4

111.7-149.1

ank/ank (18 weeks)

4

87.0

64.9-109

4

271.1

169.0-373.1

Mann-Whitney

test

0.043^a

0.029^a

^aSignificant differences; n = number of mice.

Las Heras et al. Arthritis Research & Therapy 2011 13:R163   doi:10.1186/ar3482