Table 5 Inferential analysis. Intra-group comparison of variables recorded. During vs. initial
From: Air particulate concentration during orthodontic procedures: a pilot study
Variables | Mean (SD)/median | ANOVA | Effect size: R2 | Mann–Whitney test | |||
|---|---|---|---|---|---|---|---|
BR (N = 98) | AR (N = 98) | F value | p | Value | p | ||
Particles 0.3µ | 22,726.2 9404.1)/21933.5 | 17,558.5 (7694.8)/16606.5 | 127.33** | .000 | .568 | 8.52** | .000 |
Particles 0.5µ | 9107.9 (4279.1)/8195.0 | 7715.2 (4092.9)/6571.5 | 33.47** | .000 | .257 | 5.99** | .000 |
Particles 1µ | 2448.9 1219.0)/2091.0 | 2077.7 (1169.6)/1728.0 | 26.88** | .000 | .217 | 4.93** | .000 |
Particles 2.5µ | 566.2 (309.8)/474.0 | 471.0 (283.4)/377.0 | 20.92** | .000 | .177 | 4.34** | .000 |
Particles 5µ | 59.2 (35.6)/48.5 | 40.9 (25.2)/33.5 | 39.89** | .000 | .291 | 5.76** | .000 |
Particles 10µ | 37.9 (22.4)/30.0 | 27.2 (17.6)/24.0 | 35.46** | .000 | .268 | 5.86** | .000 |
Temperature (ºC) | 23.1 (1.1)/23.0 | 22.7 (1.0)/23.0 | 39.19** | .000 | .288 | 5.38** | .000 |
Rel. humidity. (%) | 45.3 (7.9)/47.5 | 46.3 (8.0)/48.2 | 35.36** | .000 | .267 | 5.37** | .000 |