Table 4.

Comparison of gas tension, electrolyte variables, and glucose in blood and lumbar CSF between age subgroups in DM patients

Age subgroup	Blood			Lumbar CSF
	Age <51 years (n = 9)	Age ≥51 years (n = 16)	p value	Age <51 years (n = 9)	Age ≥51 years (n = 16)	p value
pH	7.42 ± 0.04	7.42 ± 0.04	0.597	7.43 ± 0.02	7.44 ± 0.02	0.849
pCO2 (mmHg)	34.03 ± 5.05	33.68 ± 6.06	0.884	31.32 ± 3.16	31.46 ± 4.18	0.931
pO2 (mmHg)	121.48 ± 63.18	126.88 ± 62.11	0.365	119.89 ± 12.96	129.98 ± 18.14	0.156
${\text{HCO}}_3^{-}$ (mEq/L)	21.97 ± 2.54	22.24 ± 3.58	0.843	21.09 ± 1.60	21.32 ± 2.75	0.821
BE (mEq/L)	−1.52 ± 2.32	−1.11 ± 3.18	0.739	−1.64 ± 1.22	−1.55 ± 2.33	0.909
BUN (mg/dL)	21.89 ± 16.43	19.06 ± 16.86	0.689	18.78 ± 13.30	15.44 ± 11.87	0.524
Na+ (mEq/L)	134.10 ± 1.63	133.49 ± 4.23	0.615	135.94 ± 3.70	136.33 ± 2.52	0.761
K+ (mEq/L)	3.97 ± 0.34	3.89 ± 0.29	0.534	2.81 ± 0.10	2.80 ± 0.14	0.758
Cl− (mEq/L)	108.30 ± 3.41	108.81 ± 4.86	0.785	120.59 ± 2.78	120.99 ± 2.03	0.683
Ca2+ (mEq/L)	1.18 ± 0.11	1.17 ± 0.05	0.656	0.99 ± 0.05	1.00 ± 0.03	0.497
Mg2+ (mEq/L)	0.44 ± 0.09	0.49 ± 0.11	0.382	0.76 ± 0.05	0.77 ± 0.04	0.775
Glucose (mg/dL)	172.11 ± 68.77	155.56 ± 54.57	0.514	85.11 ± 26.68	82.13 ± 22.79	0.770
Lac (mmol/L)	1.03 ± 0.57	1.01 ± 0.41	0.926	1.29 ± 0.30	1.32 ± 0.24	0.807

BE: base excess; Lac: lactate.

Data are reported as mean ± standard deviation.