Table 2 Univariate and multivariate negative binomial linear regression for length of stay among adolescents with eating disorders
From: Hospitalization patterns for adolescents with eating disorders during COVID-19
Characteristics | Univariable | Multivariate | ||||||
|---|---|---|---|---|---|---|---|---|
Los (Days) LS-Mean (95% Cl) | Univ. IRR (95% Cl) | Overall P-value | Referent P-Value | Los (Days) LS-Mean (95% Cl) | Multivar. IRR (95% Cl) | Overall P-value | Referent P-value | |
COVID-19 (N = 467) | 0.001 | 0.001 | ||||||
Pre-COVID-19 | 7.83 (7.04, 8.69) | Ref. | 10.13 (8.74, 11.75) | Ref. | ||||
During COVID-19 | 12.09 (11.42, 12.81) | 1.55 (1.37, 1.74) | 0.001 | 12.89 (11.35, 14.64) | 1.27 (1.15, 1.40) | 0.001 | ||
Patient boarded (N = 467) | 0.001 | 0.001 | ||||||
No | 8.44 (7.99, 8.92) | Ref. | 8.58 (7.53, 9.79) | Ref. | ||||
Yes | 16.91 (15.71, 18.21) | 2.00 (1.83, 2.20) | 0.001 | 15.21 (13.22, 17.51) | 1.77 (1.63, 1.93) | 0.001 | ||
Age at admission, in years (N = 467) | 0.128 | 0.480 | ||||||
-- | 0.98 (0.96, 1.01) | 0.128 | -- | 0.99 (0.98, 1.01) | 0.480 | |||
Insurance (N = 467) | 0.011 | 0.062 | ||||||
Private | 10.75 (10.13, 11.40) | Ref. | 11.41 (10.25, 12.69) | Ref. | ||||
No insurance | 7.85 (5.65, 10.90) | 0.73 (0.52, 1.02) | 0.065 | 10.27 (7.83, 13.46) | 0.90 (0.69, 1.17) | 0.424 | ||
Public | 12.50 (11.11, 14.06) | 1.16 (1.02, 1.33) | 0.025 | 12.75 (11.27, 14.42) | 1.12 (1.01, 1.24) | 0.032 | ||
Abnormal EKG (N = 467) | 0.229 | 0.001 | ||||||
No | 10.57 (9.73, 11.48) | Ref. | 10.23 (8.88, 11.77) | Ref. | ||||
Yes | 11.29 (10.55, 12.08) | 1.07 (0.96, 1.19) | 0.229 | 12.77 (11.17, 14.61) | 1.25 (1.14, 1.37) | 0.001 | ||
NG Tube usage (N = 467) | 0.001 | 0.001 | ||||||
No | 9.12 (8.60, 9.66) | Ref. | 8.99 (7.90, 10.23) | Ref. | ||||
Yes | 15.72 (14.45, 17.10) | 1.72 (1.56, 1.91) | 0.001 | 14.53 (12.60, 16.76) | 1.62 (1.48, 1.76) | 0.001 | ||
Heart rate < 40 (N = 467) | 0.050 | 0.001 | ||||||
No | 10.50 (9.80, 11.26) | Ref. | 10.37 (9.14, 11.78) | Ref. | ||||
Yes | 11.67 (10.78, 12.65) | 1.11 (1.00, 1.26) | 0.050 | 12.59 (10.87, 14.58) | 1.21 (1.11, 1.33) | 0.001 | ||
Eating disorder diagnosis (N = 467) | 0.136 | 0.928 | ||||||
Anorexia nervosa (AN) | 11.27 (10.63, 11.93) | Ref. | 11.56 (10.49, 12.75) | Ref. | ||||
Atypical anorexia nervosa (AAN) | 9.74 (8.52, 11.14) | 0.86 (0.75, 1.00) | 0.051 | 11.32 (9.90, 12.95) | 0.98 (0.88, 1.09) | 0.705 | ||
Bulimia Nervosa (BN) | 10.25 (7.37, 14.25) | 0.91 (0.65, 1.27) | 0.579 | 11.40 (8.71, 14.92) | 0.99 (0.76, 1.27) | 0.912 | ||