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. 2020 Jun 18;15(6):e0234915. doi: 10.1371/journal.pone.0234915

Table 1. Descriptive data.

Descriptive data of all of the study variables classified according to sinus involvement.

Variable N %
Gender Men 56 56.0
Women 44 44.0
Diagnosis Non-specific sinusitis 48 48.0
Fungal sinusitis 12 12.0
Inverted papilloma 4 4.0
Polyp 24 24.0
Cyst 6 6.0
Other lesions 6 6.0
Affected side Right 50 50.0
Left 50 50.0
Min Max Av. SD
Non-affected sinus Age (years) 18.2 83.0 43.6 18.3
Anteroposterior length in the horizontal plane (mm) 50 26.7 44.8 35.7
Latero-lateral length in the horizontal plane (mm) 16.4 32.8 24.5 3.4
Maximum sinus area in the horizontal plane (mm2) 339.3 908.8 542.2 114.3
Maximum unoccupied sinus area in the horizontal plane (mm2) 4.5 676.3 442.4 151.4
Maximum occupied sinus area in the horizontal plane (mm2) 4.8 492.3 99.8 137.7
Maximum height in the frontal plane (mm) 28.2 50.9 38.0 4.5
Maximum width in the Frontal plane (mm) 14.8 39.9 25.8 4.5
Maximum sinus area in the frontal plane (mm2) 283.2 1125.5 625.1 138.2
Maximum unoccupied sinus area in the frontal plane (mm2) 0.0 832.9 482.9 214.2
Maximum occupied sinus area in the frontal plane (mm2) 0.0 659.3 144.9 193.3
Total sinus volume (mm3) 52.3 254.0 141.1 42.25
Unoccupied sinus volume (mm3) 0.0 201.3 100.5 58.48
Occupied sinus volume (mm3) 0.0 150.0 40.6 50.44
Percentage occupation area in the horizontal plane (%) 0.8 98.9 18.3 25.0
Percentage occupation area in the frontal plane (%) 0.0 100.0 22.8 30.4
Percentage occupation volume (%) 0.0 100.0 28.4 35.9
Affected sinus Age (years) 18.2 83.0 43.6 18.3
Anteroposterior length in the horizontal plane (mm) 23.2 45.9 35.3 4.3
Latero-lateral length in the horizontal plane (mm) 12.3 31.8 24.0 4.2
Maximum sinus area in the horizontal plane (mm2) 181.2 896.4 528.7 133.7
Maximum unoccupied area in the horizontal plane (mm2) 0.0 499.8 119.6 167.9
Maximum occupied sinus area in the horizontal plane (mm2) 6.3 807.3 409.1 207.4
Maximum height in the frontal plane (mm) 29.2 47.4 38.3 4.5
Maximum width in the frontal plane (mm) 17.1 36.6 25.4 4.1
Maximum sinus area in the frontal plane (mm2) 372.7 917.3 623.9 131.9
Maximum unoccupied sinus area in the frontal plane (mm2) 0.0 756.0 215.9 244.0
Maximum occupied sinus area in the frontal plane (mm2) 4.5 871.5 408.0 273.7
Total sinus volume (mm3) 62.9 393.8 154.1 59.94
Unoccupied sinus volume (mm3) 0.0 245.7 57.1 57.92
Occupation sinus volume (mm3) 0.0 209.6 97.1 62.62
Percentage occupation area in the horizontal plane (%) 1.2 100.0 76.1 33.7
Percentage occupation area in the frontal plane (%) 0.7 100.0 64.2 39.3
Percentage occupation volume (%) 0.0 100.0 62.5 35.2
All sinuses Age (years) 18.2 83.0 43.6 18.2
Anteroposterior length in the horizontal plane (mm) 23.2 45.9 35.5 3.9
Latero-lateral length in the horizontal plane (mm) 12.3 32.8 24.3 3.8
Maximum sinus area in the horizontal plane (mm2) 181.2 908.8 535.4 123.9
Maximum unoccupied area in the horizontal plane (mm2) ** 0.0 676.3 281.0 227.1
Max. occupied sinus area in the horizontal plane (mm2) ** 4.8 807.3 254.4 234.2
Maximum height in the frontal plane (mm) 28.2 50.9 38.2 4.5
Maximum width in the frontal plane (mm) 14.8 39.9 25.6 4.3
Maximum sinus area in the frontal plane (mm2) 283.2 1125.5 624.5 134.4
Maximum unoccupied sinus area in the frontal plane (mm2) ** 0.0 832.9 349.4 264.9
Maximum occupied sinus area in the frontal plane (mm2) ** 0.0 871.5 276.5 270.2
Total sinus volume (mm3) 52.3 393.8 147.6 52.0
Unoccupied sinus volume (mm3) ** 0.0 245.7 78.8 61.9
Occupation sinus volume (mm3) ** 0.0 209.6 68.8 63.3
Percentage occupation area in the horizontal plane (%) ** 0.8 100.0 47.2 41.4
Percentage occupation area in the frontal plane (%) ** 0.0 100.0 43.5 40.7
Percentage occupation volume (%) ** 0.0 100.0 45.4 39.3

SD = Standard deviation.

** Differences between affected and non-affected sinuses of p<0.001 level. Min: minimum; Max: maximum; Av: average.