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. 2019 Aug 22;13:1178630219869922. doi: 10.1177/1178630219869922

Table 3.

Space-time cubes and emerging hot spot analyses exhibiting increasing trends across Alberta Perinatal Health Program (APHP) all births, small for gestational age (SGA), low birth weight at term (LBWT) and Canadian Neonatal Network (CNN) critically ill (ci) SGA and LBWT.

Calgary
Edmonton
APHP = 865 locations
CNN = 568 locations
APHP = 1032 locations
CNN = 442 locations
Births SGA LBWT ciSGA ciLBWT Births SGA LBWT ciSGA ciLBWT
Trend
Mann-Kendall statistic 4.89 3.07 1.86 3.65 2.22 6.72 6.66 5.72 3.71 2.56
P value <.01 <.01 .06 <.01 .03 <.01 <.01 <.01 <.01 .01
Sparseness (% non-zero) 52.75 12.8 2.70 1.46 0.36 27.57 5.38 1.07 0.56 0.14
No pattern 0.508 0.874 0.939 0.979 0.944 0.421 0.684 0.898 0.937 0.939
Hot spots
 New 0.001 0.010 0.002 0.018 0.008 0.004 0.014
 Consecutive 0.003 0.004 0.018 0.002 0.045 0.002 0.011 0.009
 Intensifying 0.112 0.015
 Persistent 0.045 0.020
 Diminishing 0.013 0.003
 Sporadic 0.082 0.084 0.051 0.016 0.021 0.009 0.264 0.096 0.038 0.052
 Oscillating 0.006 0.513
 Historical 0.001 0.001
Cold spots
 New 0.001
 Consecutive
 Intensifying 0.043
 Persistent 0.090
 Diminishing 0.014 0.016
 Sporadic 0.082 0.040
 Oscillating
 Historical
Hot/cold trends 0.492 0.126 0.061 0.021 0.056 0.579 0.316 0.102 0.063 0.061
Category count 12 6 2 3 3 5 3 3 3 2

Proportion of each hot/cold spot category is shown; pattern categories are defined in Supplemental Table S1.