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. 2021 Jun 5;63(4):324–333. doi: 10.1016/j.rxeng.2021.03.006

Table 3.

Clinical course of patients according to extension and radiological findings.

Total patients n = 265 Hospitalisation n = 244 ICU/intubation n = 34 Death n = 17
Classification 6A P = .009 P = .27 P = .026
n = 237 222 (vs <2 fields n = 22) 33 (vs <2 fields n = 1) 16 (vs <2 fields n = 1)
≥2 fields Not hospitalised: 15 No ICU/intubation: 204 Did not die: 221
Classification 6B P = .001 P = .11 P = .01
n = 197 189 (vs <3 fields n = 55) 29 (vs <3 fields n = 5) 14 (vs <3 fields n = 3)
≥3 fields Not hospitalised: 8 No ICU/intubation: 168 Did not die: 183
Classification 8 P = .001 P = .167 P = .006
n = 210 200 (vs <4 fields n = 44) 30 (vs <4 fields n = 4) 14 (vs <4 fields n = 3)
≥4 fields Not hospitalised: 10 No ICU/intubation: 180 Did not die: 196
Linear opacities (P = .075) P = .068 P = .6
n = 125 119 (vs linear op. absent n = 125) 21 (vs linear op. absent n = 13) 7 (vs linear op. absent n = 10)
Not hospitalised: 6 No ICU/intubation: 104 Did not die: 118
Alveolar opacities P = .14 P = .52 P = .053
n = 59 57 (vs alveolar op. absent n = 187) 9 (vs alveolar op. absent n = 25) 7 (vs alveolar op. absent n = 10)
Not hospitalised: 2 No ICU/intubation: 50 Did not die: 52
Classification 6A + linear opacities/alveolar opacities P = .44 P = .26 P = .23
145 (vs 99 no opacities) 5 (vs 29 no opacities) 3 (vs 14 no opacities)
Not hospitalised: 5 No ICU/intubation: 20 Did not die: 22
Classification 6B + linear opacities/alveolar opacities P = .47 P = .21 P = .20
23 (vs 221 no opacities) 5 (vs 29 no opacities) 3 (vs 14 no opacities)
Not hospitalised: 1 No ICU/intubation: 19 Did not die: 21
Classification 8 + linear opacities/alveolar opacities P = .47 P = .21 P = .2
23 (vs 221 no opacities) 5 (vs 29 no opacities) 3 (vs 14 no opacities)
Not hospitalised: 1 No ICU/intubation: 19 Did not die: 21
P = .000 P = .035 P = .539
Radiological worsening 206 (vs 38 no worsening) 32 (vs 2 no worsening) 15 (vs 2 no worsening)
Not hospitalised: 5 No ICU/intubation: 179 Did not die: 196

P values are shown in the χ2 test (Fisher's exact test for “radiological worsening”).