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Table 2 Odds ratios of variables when included in regression models as categorical quartiles

From: Evaluating local vegetation cover as a risk factor for malaria transmission: a new analytical approach using ImageJ

Average size     
Buffer (m2) Quantile OR (95% CI) SE p-value
50 (17.6,26.1] 1.34 (0.34 – 4.56) 0.65 0.744
  (26.1,38.2] 2.55 (0.72 – 9.73) 0.66 0.156
  (38.2,104] 1.86 (0.53 – 6.84) 0.65 0.339
100 (26.6,37.2] 3.50 (0.98 – 13.75) 0.67 0.061
  (37.2,52.7] 1.91 (0.53 – 7.31) 0.66 0.330
  (52.7,103] 2.10 (0.57 – 8.16) 0.67 0.268
500 (80, 99.7] 1.83 (0.53 – 6.64) 0.64 0.344
  (99.7, 134] 1.35 (0.38 – 4.91) 0.65 0.643
  (134, 286] 1.00 (0.28 – 3.59) 0.64 1.000
Area fraction     
50 (5.8,9.8] 0.97 (0.27 – 3.43) 0.64 0.962
  (9.8,17.1] 1.20 (0.34 – 4.24) 0.64 0.775
  (17.1,38.5] 1.33 (0.39 – 4.65) 0.63 0.647
100 (6.7,11.4] 0.92 (0.26 – 3.17) 0.63 0.890
  (11.4,16.6] 1.22 (0.34 – 4.46) 0.65 0.758
  (16.6,36.9] 1.00 (0.28 – 3.51) 0.64 1.000
500 (7.9,12.4] 0.75 (0.21 – 2.57) 0.63 0.647
  (12.4,17.3] 1.25 (0.35 – 4.57) 0.62 0.732
  (17.3,37] 0.54 (0.15 – 1.90) 0.65 0.339
Total area     
50 (355,614] 2.85 (0.80 – 11.03) 0.66 0.114
  (614,1.19e + 03] 2.10 (0.57 – 8.16) 0.67 0.268
  (1.19e + 03,2.96e + 03] 2.33 (0.65 – 8.95) 0.66 0.201
100 (2.12e + 03,3.57e + 03] 1.00 (0.28 – 3.51) 0.64 1.000
  (3.57e + 03,5.15e + 03] 1.10 (0.31 – 3.93) 0.64 0.882
  (5.15e + 03,1.15e + 04] 1.00 (0.28 – 3.51) 0.64 1.000
500 (5.97e + 04,9.36e + 04] 1.00 (0.28 – 3.51) 0.64 1.000
  (9.36e + 04,1.28e + 05] 1.34 (0.38 – 4.89) 0.64 0.634
  (1.28e + 05,2.79e + 05] 0.81 (0.23 – 2.87) 0.64 0.749
Count     
50 (16,28] 0.38 (0.10 – 1.28) 0.64 0.125
  (28,38] 0.41 (0.10 – 1.49) 0.67 0.184
  (38,76] 0.92 (0.26 – 3.17) 0.63 0.890
100 (61,81] 0.36 (0.10 – 4.26) 0.65 0.117
  (81,146] 0.28 (0.07 – 1.02) 0.67 0.059
  (146,269] 0.62 (0.17 – 2.12) 0.63 0.444
500 (704,881] 0.82 (0.23 – 5.84) 0.63 0.752
  (881,1.03e + 03] 0.73 (0.20 – 2.57) 0.64 0.621
  (1.03e + 03,1.42e + 03] 0.82 (0.23 – 2.84) 0.63 0.752