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Table 3 Subgroup analyses by department and principal diagnoses

From: Delay in reviewing test results prolongs hospital length of stay: a retrospective cohort study

Covariate

Estimate (β) (95% CI)

p-value

(a) Department: geriatric medicine

 Age

0.998 (0.991–1.005)

0.516

 Charlson comorbidity index

0.992 (0.957–1.029)

0.661

 Number of test panels

1.072 (1.060–1.085)

< 0.0001

 Cumulative CRT (days)

1.108 (1.080–1.137)

< 0.0001

 Cumulative LTAT (days)

0.995 (0.972–1.018)

0.652

 Number of unreviewed tests

0.996 (0.990–1.003)

0.274

(b) Department: cardiology medicine

 Age

1.001 (0.998–1.004)

0.467

 Charlson comorbidity index

1.049 (1.018–1.083)

0.002

 Number of test panels

1.112 (1.099–1.126)

< 0.0001

 Cumulative CRT (days)

1.049 (1.012–1.092)

0.001

 Cumulative LTAT (days)

0.979 (0.962–0.998)

0.003

 Number of unreviewed tests

0.999 (0.993–1.006)

0.829

(c) Department: general surgery

 Age

1.003 (0.999–1.006)

0.123

 Charlson comorbidity index

1.019 (0.986–1.056)

0.283

 Number of test panels

1.114 (1.097–1.132)

< 0.0001

 Cumulative CRT (days)

1.034 (1.000–1.076)

0.026

 Cumulative LTAT (days)

0.975 (0.944–1.008)

0.133

 Number of unreviewed tests

0.992 (0.986–0.998)

0.012

(d) Department: psychiatry

 Age

1.011 (1.000–1.023)

0.054

 Charlson comorbidity index

1.060 (0.951–1.212)

0.368

 Number of test panels

1.168 (1.080–1.270)

< 0.0001

 Cumulative CRT (days)

1.140 (1.077–1.213)

< 0.0001

 Cumulative LTAT (days)

1.048 (0.995–1.112)

0.031

 Number of unreviewed tests

0.959 (0.942–0.981)

0.0002

(e) Principal diagnosis: renal failure

 Age

1.007 (0.995–1.019)

0.289

 Charlson comorbidity index

0.921 (0.841–1.013)

0.087

 Number of test panels

1.037 (0.995–1.080)

0.090

 Cumulative CRT (days)

1.182 (1.092–1.289)

0.0002

 Cumulative LTAT (days)

1.006 (0.966–1.050)

0.776

 Number of unreviewed tests

0.994 (0.977–1.013)

0.509

(f) Principal diagnosis: knee or hip replacement surgery

 Age

1.004 (0.994–1.014)

0.404

 Charlson comorbidity index

1.025 (0.848–1.265)

0.815

 Number of test panels

1.054 (1.016–1.095)

0.007

 Cumulative CRT (days)

1.177 (1.071–1.299)

0.003

 Cumulative LTAT (days)

1.004 (0.905–1.116)

0.941

 Number of unreviewed tests

0.992 (0.978–1.008)

0.335