Table 2

Event RR of the 30-day readmission by CV decile category, obtained in the last 24 hours of inpatient stay

Decile category: CV%*Model 1: RR
(95% CI)
P valueModel 2: RR
(95% CI)
P valueModel 3: RR
(95% CI)
P value
1st: 3.6 (2.0–4.9)1.00 ref1.00 ref1.00 ref
2nd: 8.2 (7.2–9.2)1.00 (0.98 to 1.02)0.881.00 (0.98 to 1.02)0.811.00 (0.98 to 1.02)0.80
3rd: 12.0 (11.1–12.9)1.02 (1.00 to 1.04)0.061.01 (0.99 to 1.03)0.441.01 (0.99 to 1.03)0.45
4th: 15.6 (14.7–16.5)1.03 (1.01 to 1.05)0.00041.01 (0.99 to 1.03)0.251.01 (0.99 to 1.03)0.27
5th: 19.4 (18.4–20.3)1.06 (1.04 to 1.08)<0.00011.02 (1.00 to 1.04)0.031.02 (1.00 to 1.04)0.03
6th: 23.4 (22.4–24.5)1.08 (1.06 to 1.10)<0.00011.03 (1.01 to 1.05)0.0021.03 (1.01 to 1.05)0.003
7th: 28.1 (26.9–29.4)1.10 (1.08 to 1.12)<0.00011.04 (1.02 to 1.06)<0.00011.04 (1.02 to 1.05)<0.0001
8th: 33.9 (32.3–35.6)1.15 (1.13 to 1.18)<0.00011.07 (1.05 to 1.09)<0.00011.07 (1.05 to 1.09)<0.0001
9th: 41.8 (39.5–44.4)1.16 (1.13 to 1.19)<0.00011.07 (1.04 to 1.09)<0.00011.06 (1.03 to 1.08)<0.0001
10th: 56.2 (51.2–64.1)1.23 (1.20 to 1.26)<0.00011.10 (1.08 to 1.13)<0.00011.08 (1.05 to 1.10)<0.0001
  • Model 1: adjusting for age, gender, race.

  • Model 2: adjusting for age, gender, race (model 1) and length of stay, DM medication groups, income, BMI, year of admission, admission source, admitting service, comorbidities.

  • Model 3: adjusting for age, gender, race, length of stay, DM medication groups, income, BMI, year of admission, admission source, admitting service, comorbidities (model 2) and hypoglycemia.

  • In bold are p<0.05 considered to be statistically signifficant.

  • *Median (IQR).

  • BMI, body mass index; CV, coefficient of variation; DM, diabetes mellitus; RR, rate ratio.