Table 1.

Table 1 Characteristics of SICU Subjects in Pre and Post Periods

Characteristic	Pre (n = 147)	Post (n = 204)	p-value Pre vs. Post ∗
Age in yrs (mean ± SD)	59.6 ± 17.3	59.8 ± 15.7	0.93
Male sex # (%)	83 (56)	128 (63)	0.52
Primary discharge diagnosis # (%)			0.31
Circulatory	59 (40)	92 (45)
Neoplastic	20 (14)	35 (17)
Digestive	20 (14)	30 (15)
Injury	21 (14)	17 (8)
Other†	27 (18)	30 (15)
Diabetes mellitus # (%)	37 (25)	38 (19)	0.140
Hospital length of stay in days	9.5 (5.5–24.5)	9 (5–16)	0.105
Median (IQR)
Hematocrit‡ (%) mean ± SD	31.8 ± 5.7	32.9 ± 6.8	0.111
WBC‡ (K/μL) mean ± SD	12.9 ± 5.6	13.6 ± 6.2	0.29
Sodium‡ (mmol/L) mean ± SD	138 ± 4.8	139 ± 4.7	0.033
Potassium‡ (mmol/L) mean ± SD	4.1 ± 0.7	4.1 ± 0.6	1.00
Creatinine‡ (mg/dl) mean ± SD	1.1 ± 1.1	1.3 ± 1.7	0.26
pH‡ mean ± SD	7.4 ± 0.1	7.4 ± 0.1	1.00

^∗ p-values were obtained by Student’s t-test, Chi-square test, or Wilcoxon rank-sum test as appropriate.

^† Includes infectious, endocrine and metabolic, central nervous system, respiratory, genitourinary, skin, musculoskeletal, congenital, signs and symptoms.

^‡ Obtained on day of SICU admission, as available. To convert creatinine to micromoles per liter, multiply by 88.4.