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. 2020 Jun 14;37(1):e3354. doi: 10.1002/dmrr.3354

TABLE 2.

Adjusted multiple forward stepwise logistic regression models for the association between neck circumference and invasive mechanical ventilation in 132 patients with COVID‐19 infection

Model Determination coefficient Predictors a Adjusted OR (95% CI) P‐value
#1 R 2 0.222; P < .001 Neck circumference 1.260 (1.120–1.417) <.001
#1a R 2 0.337; P < .001

Neck circumference

Female sex

1.526 (1.243‐1.874)

3.857 (0.971‐15.316)

<.001

.055
#2 R 2 0.540; P < .001

Neck circumference

Albumin

Monocytes

1.328 (1.126‐1.565)

0.122 (0.030‐0.490)

0.896 (0.807‐0.994)

.001

.003

.039
#2a R 2 0.490; P < .001

Neck circumference

Albumin

1.371 (1.133‐1.658)

0.127 (0.030‐0.530)

.001

.005

Note: Stepwise multiple logistic regression of invasive mechanical ventilation on neck circumference, adjusted for age, sex, diabetes, hypertension, and chronic obstructive pulmonary disease (Model #1) and for monocytes, eosinophils, albumin, C‐reactive protein, hydroxychloroquine, and steroids (Model #2). Results of the same models applied on the population of patients with body mass index of ≤30 kg/m2 are reported as Models #1a and #2a, respectively.

a

Variables included in the final models (P < .05).