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. 2015 Sep 18;31(2):215–223. doi: 10.1007/s12291-015-0519-8

Table 2.

Comparison of rhythm parameters among different age groups

Total cholesterol
Group M A ϕ P (H0: A = 0)
A 170.4 24.8 –244 <0.001
B 170.2 21.5 –267 <0.001
C 166.9 16.4 –245 <0.001
D 165.5 22.7 –221 <0.001
Tests of equality of parameters among groups: F (P) (A–ϕ)
 All 4 groups 1.797 (0.150) 8.331 (< 0.001) 18.611 (< 0.001) 12.790 (< 0.001)
 B versus A 0.009 (0.926) 4.503 (0.036) 20.706 (< 0.001) 10.697 (< 0.001)
 C versus B 2.239 (0.138) 9.941 (0.002) 8.920 (0.004) 10.335 (< 0.001)
 D versus C 0.519 (0.474) 10.467 (0.002) 10.257 (0.002) 7.406 (0.001)
 D versus A 2.937 (0.091) 1.358 (0.248) 13.831 (< 0.001) 8.268 (< 0.001)
High-density lipoprotein cholesterol
Group M A ϕ P (H0: A = 0)
A 41.6 12.6 –242 <0.001
B 47.9 13.1 –253 <0.001
C 46.3 13.6 –245 <0.001
D 38.7 10.4 –221 <0.001
Tests of equality of parameters among groups: F (P) (A–ϕ)
 All 4 groups 30.616 (< 0.001) 2.928 (0.036) 7.341 (< 0.001) 8.583 (< 0.001)
 B versus A 44.502 (< 0.001) 0.365 (0.547) 4.350 (0.040) 3.163 (0.044)
 C versus B 2.731 (0.102) 0.380 (0.539) 2.362 (0.128) 1.166 (0.314)
 D versus C 39.561 (< 0.001) 6.564 (0.013) 13.400 (0.001) 15.082 (< 0.001)
 D versus A 5.688 (0.020) 3.250 (0.076) 8.993 (0.004) 8.379 (< 0.001)
Phospholipids
Group M A ϕ P (H0: A = 0)
A 103.8 22.5 –226 <0.001
B 126.6 25.5 –216 <0.001
C 125.7 27.1 –232 <0.001
D 120.6 8.7 –298 0.016
Tests of equality of parameters among groups: F (P) (A–ϕ)
 All 4 groups 41.486 (< 0.001) 16.853 (< 0.001) 4.067 (0.008) 14.150 (< 0.001)
 B versus A 116.902 (< 0.001) 2.092 (0.151) 1.602 (0.209) 1.245 (0.290)
 C versus B 0.115 (0.735) 0.441 (0.508) 4.410 (0.038) 3.278 (0.040)
 D versus C 2.874 (0.095) 35.105 (< 0.001) 5.527 (0.022) 20.262 (< 0.001)
 D versus A 45.853 (< 0.001) 32.831 (< 0.001) 7.831 (0.007) 21.586 (< 0.001)
Total lipids
Group M A ϕ P (H0: A = 0)
A 386.0 75.1 –257 <0.001
B 524.3 75.1 –258 <0.001
C 505.9 50.5 –242 <0.001
D 494.9 29.0 –122 0.002
Tests of equality of parameters among groups: F (P) (A–ϕ)
 All 4 groups 50.049 (< 0.001) 15.967 (<0.001) NA 21.348 (< 0.001)
 B versus A 119.305 (< 0.001) <0.001 (0.994) 0.021 (0.886) 0.010 (0.990)
 C versus B 1.942 (0.167) 11.157 (0.001) 2.222 (0.139) 6.383 (0.002)
 D versus C 0.686 (0.411) 17.543 (< 0.001) NA 31.106 (< 0.001)
 D versus A 65.238 (< 0.001) 39.953 (< 0.001) NA 46.594 (< 0.001)

M MESOR, A 24-h amplitude, ϕ 24-h acrophase (360° ≡ 24 h, 0°: 00:00) NA not applicable (acrophases more than 180° apart, P < 0.05 if 95 % confidence intervals do not overlap)