| b. Location relative to Balcones Escarpment |
| Analyte |
Units |
n |
West |
n |
East |
p |
| pHNT
|
at 37°C |
25 |
7.58 ±0.02 |
25 |
7.58 ±0.01 |
0.87 |
| pO2
|
mmHg |
25 |
33.5 ±0.9 |
26 |
36.3 ±0.8 |
0.03 |
| sO2
|
% |
25 |
75 ±2 |
25 |
79 ±1 |
0.06 |
| pCO2
|
mmHg |
25 |
28.6 ±1.3 |
25 |
28.2 ±1.0 |
0.81 |
| HCO3
|
mmol L-1
|
25 |
26.5 ±0.9 |
25 |
25.8 ±0.9 |
0.59 |
| tCO2NT
|
mmol L-1
|
25 |
27.2 ±0.9 |
25 |
26.9 ±0.8 |
0.79 |
| BEecf |
mmol L-1
|
25 |
4.6 ±0.9 |
25 |
4.2 ±0.9 |
0.78 |
| LactateNT
|
mmol L-1
|
20 |
3.5 ±0.3 |
22 |
4.1 ±0.3 |
0.18 |
| Glucose |
mg dL-1
|
23 |
367.1 ±12.6 |
25 |
294.7 ±8.3 |
<0.001 |
| Na+
|
mmol L-1
|
23 |
158.3 ±0.8 |
25 |
159.0 ±0.7 |
0.48 |
| K+
|
mmol L-1
|
23 |
3.7 ±0.1 |
25 |
3.6 ±0.1 |
0.37 |
| Cl-
|
mmol L-1
|
19 |
119.3 ±1.1 |
21 |
119.1 ±0.9 |
0.90 |
| BUNT
|
mg dL-1
|
19 |
1.7 ±0.3 |
21 |
1.7 ±0.1 |
0.42M
|
| PCV |
% |
21 |
57 ±2 |
27 |
59 ±1 |
0.40 |
| HctNT
|
%PCV |
23 |
44 ±1 |
25 |
44 ±0.8 |
0.95 |
| HbNT
|
g dL-1
|
23 |
14.8 ±0.2 |
25 |
14.7 ±0.3 |
0.67 |
NVariable not normally distributed, tested with Shapiro-Wilk Goodness of Fit test for normality.
TVariable transformed to normalize data. 1/exp(x): pH, Log(x): tCO2, Lactate, 1/sqrt(x): BUN, 1/x: Hct, Hb
†Statistical significance between each pair t-test (alpha=0.05), p-value provided on second row
CVariable failed to reach normal distribution, Chi-square value and probability provided
MVariable unable to reach normal distribution, Mann-Whitney ranked score test performed
*PCV measured from centrifuge, Hct measured by iSTAT machine
Abbreviations: pO2: partial pressure oxygen, sO2: saturated oxygen, pCO2: partial pressure carbon dioxide, HCO3: bicarbonate, tCO2: total carbon dioxide, BEecf: base excess, Na+: sodium, K+: potassium, Cl-: chloride, BUN: blood urea nitrogen, Hct: hematocrit, Hb: hemoglobin