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Table 7 Correlational analysis. Potential Regression Models, predictors of the number of particles of each size, from the relative humidity. Situation during. (N = 98)

From: Air particulate concentration during orthodontic procedures: a pilot study

Predictive variable R2 adjust Contrast test Coefficient SE
Value p-value
Particles 0.3µ .998 227.11** .0000 2.61  ± 0.433
Particles 0.5µ .998 197.19** .0000 2.37  ± 0.452
Particles 1µ .997 167.64** .0000 2.02  ± 0.454
Particles 2.5µ .994 122.67** .0000 1.63  ± 0.500
Particles 5µ .980 68.74** .0000 1.03  ± 0.563
Particles 10µ .977 63.74** .0000 0.92  ± 0.540
  1. **Highly significant