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Table 2 Descriptive analysis of the variables in each of the 3 measurements

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

Status Variable Centricity    Range (Min./Max.) Variability  
   Mean 95% CI of the mean Median   Standard deviation Interquartile range
CR Particles 0.3µ 6064.5 5936.1/6265.8 6007.0 4585/91.24 869.0 1049.8
(N = 74) Particles 0.5µ 1760.1 1690.2/1830.0 1770.0 1192/257.0 301.6 354.5
  Particles 1µ 368.2 347.1/389.3 354.0 210/634 91.1 11.0
  Particles 2.5µ 61.1 56.8/65.3 60.5 18/129 18.4 20.5
  Particles 5µ 5.1 4.6/5.6 5.0 1/12 2.3 4.0
  Particles 10µ 3.2 2.8/3.5 3.0 0/8 1.6 2.0
  Temperature (ºC) 22.2 22.0/22.4 22.0 21.0/23.0 5 0.8 1.0
  Relative humidity (%) 42.8 41.9/43.6 42.0 39.0/52.0 3.6 7.0
AR Particles 0.3µ 17,558.5 16,015.8/19101.2 16,606.5 4127/39797 7694.8 12,561.3
(N = 98) Particles 0.5µ 7715.2 6894.6/85.35.8 6571.5 1798/20353 4092.9 5220.0
  Particles 1µ 2077.7 1843.2/2312.1 1728.0 559/5660 1169.6 1448.8
  Particles 2.5µ 471.0 414.2/527.8 377.0 104/1250 283.4 293.5
  Particles 5µ 40.9 35.9/46.0 33.5 7/129 25.2 30.3
  Particles 10µ 27.2 23.7/30.8 24.0 6/96 17.6 21.3
  Temperature (ºC) 22.7 22.5/22.9 23.0 20.0/24.9 1.6 1.3
  Relative humidity (%) 46.3 44.7/47.9 48.2 28.0/58.8 8.0 10.0
BR Particles 0.3µ 22,726.2 20,840.8/24611.6 21,933.5 4991/45021 9404.1 12,556.5
(N = 98) Particles 0.5µ 9107.9 8250.0/9965.8 8881.2 2134/22112 4279.1 5690.3
  Particles 1µ 2448.9 22,004.5/2693.3 2379.5 731/5855 1219.0 1730.3
  Particles 2.5µ 566.2 504.0/628.3 546.0 129/1508 309.8 433.8
  Particles 5µ 59.2 52.1/66.4 56.9 10/164 35.6 42.0
  Particles 10µ 37.9 33.5/42.4 36.4 10/95 22.4 27.5
  Temperature (ºC) 23.1 22.9/23.3 23.1 20.0/25.5 1.1 2.0
  Relative humidity (%) 45.3 43.7/46.9 45.6 27.0/60.0 7.9 8.4