Table 4 Inferential analysis. Intergroup comparison of the variables recorded. During vs. control
From: Air particulate concentration during orthodontic procedures: a pilot study
Variables | Mean (SD)/Median | ANOVA | Effect size: R2 | Mann–Whitney test | |||
|---|---|---|---|---|---|---|---|
BR (N = 98) | Control (N = 74) | F-value | p | Value | p | ||
Particles 0.3µ | 22,726.2 (9404.1)/21933.5 | 6064.5 (869.0)/6007.0 | 230.48** | .000 | .576 | 10.93** | .000 |
Particles 0.5µ | 9107.9 (4279.1)/8195.0 | 1760.1 (301.6)/1770.0 | 217.08** | .000 | .561 | 11.20** | .000 |
Particles 1µ | 2448.9 (1219.0)/2091.0 | 368.2 (91.1)/354.0 | 214.39** | .000 | .558 | 11.21** | .000 |
Particles 2.5µ | 566.2 (309.8)/474.0 | 61.1 (18.4)/60.5 | 195.84** | .000 | .535 | 11.21** | .000 |
Particles 5µ | 59.2 (35.6)/48.5 | 5.1 (2.3)/5.0 | 169.99** | .000 | .500 | 11.21** | .000 |
Particles 10µ | 37.9 (22.4)/30.0 | 3.2 (1.6)/3.0 | 178.03** | .000 | .512 | 11.25* | .000 |
Temperature (ºC) | 23.1 (1.1)/23.0 | 22.2 (0.8)/22.0 | 36.11** | .000 | .175 | 5.42** | .000 |
Rel. Humidity. (%) | 45.3 (7.9)/47.5 | 42.8 (3.6)/42.0 | 6.46* | .012 | .037 | 4.04** | .000 |