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Table 3 Univariate analysis of variance for %C3b-positive red cells as dependent variable

From: Increased deposition of C3b on red cells with low CR1 and CD55 in a malaria-endemic region of western Kenya: Implications for the development of severe anemia

   Unadjusted Adjusted
Groups Independent Variables F B (SE) 95% CI of B η 2 p P F B (SE) 95% CI of B η 2 p P
All Age Groups (months) 21.8 -- -- 0.245 5.9 × 10-19 11.6 -- -- 0.149 2.5 × 10-10
N = 342 0 to ≤ 6 -- 4.13 (2.53) -0.85 to 9.10 0.008 0.10 -- 3.29 (2.45) -1.38 to 8.29 0.006 0.18
  >6 to ≤ 36 -- 15.08 (1.75) 11.63 to 18.53 0.180 3.1 × 10-16 -- 11.61 (1.81) 8.05 to 15.18 0.111 1.8 × 10-10
  >36 to ≤ 72 -- 9.17 (2.28) 4.68 to 13.66 0.046 7.3 × 10-5 -- 5.99 (2.30) 1.48 to 10.51 0.020 0.01
  >72 to ≤ 144 -- 7.64 (2.33) 3.05 to 12.23 0.031 1.2 × 10-3 -- 4.61 (2.36) -0.03 to 9.24 0.011 0.07
  >144 to ≤ 288 -- -1.64 (2.72) -7.00 to 3.72 0.001 0.55 -- -1.38 (2.68) -6.64 to 3.88 0.001 0.54
  >288 to ≤ 540* -- -- -- -- -- -- -- -- -- --
  CR1 46.1 -0.026 (0.004) -0.034 to -0.019 0.119 5.1 × 10-11 3.2 -0.008 (0.004) -0.016 to 0.001 0.010 0.07
  CD55 35.3 -0.007 (0.001) -0.009 to -0.004 0.094 7.0 × 10-9 5.5 -0.003 (0.001) -4.8 × 10-3 to -0.4 × 10-3 0.016 0.02
  Malaria Negative 17.8 -5.7 (1.4) -8.4 to -3.1 0.050 3.2 × 10-5 6.4 -3.34 (1.32) -5.93 to -0.74 0.019 0.01
  Parasite Density 8.8 1.9 × 10-4 (0.6 × 10-4) 0.6 × 10-4 to 3.2 × 10-4 0.025 3.2 × 10-3 0.5 4.1 × 10-5 (5.9 × 10-5) -0.8 × 10-4 to 1.6 × 10-4 0.001 0.49
  ICBC 12.9 -0.358 (0.100) -0.554 to -0.162 0.037 3.8 × 10-4 2.0 -0.130 (0.092) -0.311 to 0.050 0.006 0.16
Malaria-treated Age Groups (months) 12.7 -- -- 0.306 3.2 × 10-10 9.0 -- -- 0.244 1.8 × 10-7
N = 150 0 to ≤ 6 -- 12.36 (6.06) 0.38 to 24.35 0.028 0.04 -- 10.08 (6.38) -2.53 to 22.68 0.018 0.12
  >6 to ≤ 36 -- 21.48 (3.88) 13.81 to 29.15 0.175 1.4 × 10-7 -- 20.00 (4.13) 11.83 to 28.18 0.143 3.4 × 10-6
  >36 to ≤ 72 -- 10.68 (4.28) 2.23 to 19.13 0.042 0.01 -- 10.01 (4.42) 1.28 to 18.73 0.035 0.03
  >72 to ≤ 144 -- 9.49 (4.28) 1.04 to 17.94 0.033 0.02 -- 8.25 (4.43) -0.51 to 17.00 0.024 0.07
  >144 to ≤ 288 -- -0.78 (5.22) -11.11 to 9.53 1.6 × 10-4 0.88 -- -0.69 (5.26) -11.10 to 9.72 1.2 × 10-4 0.90
  >288 to ≤ 540* -- -- --   -- -- -- -- -- --
  CR1 13.7 -0.030 (0.008) -0.046 to -0.014 0.085 3.0 × 10-4 3.0 -0.015 (0.009) -.032 to 0.002 0.021 0.09
  CD55 7.2 -0.005 (0.002) -0.009 to -0.001 0.047 7.9 × 10-3 0.01 2.5 × 10-4 (21.1 × 10-4) -0.004 to 0.004 1.0 × 10-4 0.91
  Parasite Density 2.6 1.2 × 10-4 (0.8 × 10-4) -0.3 × 10-4 to 2.7 × 10-4 0.017 0.11 0.1 -1.9 × 10-5 (6.8 × 10-5) -1.5 × 10-4 to 1.1 × 10-4 0.001 0.78
  ICBC 0.2 -0.069 (0.171) -0.408 to 0.269 0.001 0.69 0.3 0.085 (0.155) -0.222 to 0.392 0.002 0.59
Malaria Negative Age Groups (months) 9.9 -- -- 0.210 2.2 × 10-8 4.8 -- -- 0.116 6.3 × 10-5
N = 192 0 to ≤ 6 -- 2.07 (2.50) -2.87 to 7.00 0.004 0.41 -- 1.76 (2.35) -2.93 to 6.34 0.003 0.47
  >6 to ≤ 36 -- 10.80 (1.84) 7.17 to 14.43 0.156 2.0 × 10-8 -- 7.93 (1.82) 4.71 to 11.78 0.094 7.9 × 10-6
  >36 to ≤ 72 -- 9.23 (2.95) 3.41 to 15.06 0.050 0.002 -- 7.76 (2.78) 2.49 to 13.43 0.041 4.6 × 10-3
  >72 to ≤ 144 -- 7.09 (3.21) 0.75 to 13.43 0.025 0.03 -- 4.66 (3.05) -1.44 to 10.60 0.013 0.13
  >144 to ≤ 288 -- -1.42 (3.03) -7.39 to 4.56 0.001 0.64 -- 0.33 (2.91) -5.83 to 5.45 7.0 × 10-5 0.95
  >288 to ≤ 540* -- -- -- -- -- -- -- -- -- --
  CR1 29.4 -0.022 (0.004) -0.030 to -0.014 0.134 1.8 × 10-7 1.0 -0.004 (0.005) -0.014 to 0.005 0.005 0.33
  CD55 27.0 -0.006 (0.001) -0.009 to -0.004 0.124 5.2 × 10-7 8.6 -0.004 (0.001) -0.006 to -0.001 0.045 3.8 × 10-3
  ICBC 26.9 -0.564 (0.109) -0.779 to -0.350 0.124 5.4 × 10-7 9.0 -0.326 (0.109) -0.540 to -0.111 0.047 3.1 × 10-3
  1. *B for this group set to '0' as reference.
  2. B for malaria-treated group was set to '0' as reference.
  3. η 2 p = Partial Eta squared or coefficient of non-linear correlation.
  4. ICBC = IC binding capacity.