Sentence examples for ppm at baseline from inspiring English sources

However, acetone levels were significantly affected (1.38 ± 0.15 ppm, 1.50 ± 0.18 ppm at baseline and after breath hold respectively, p = 0.03, Figure  2 Panel B).

Only two classrooms (E10 and C5) had mean CO2 concentration lower than 800 ppm at baseline, and another five classrooms had mean CO2 concentrations lower than 1200 ppm.

The mean peak hydrogen excretion was 13.7 ± 2.8 and 10.3 ± 7.3 ppm at baseline and following rifaximin treatment, respectively (t = 1.98, p = 0.06).

6, 12, 17 Additional methane threshold definitions for malabsorption of >3 ppm at baseline and an increase of >20 ppm over baseline at any time during the test were applied for correlations with stool patterns for comparison with previous publications.

Among the 19 non-IBS patients receiving rifaximin for treatment of LBT-diagnosed SIBO, 13 (68.4%) received antisecretory therapy, 5 (26.3%) reported diabetes mellitus and 2 patients reported collagen vascular disease.> The mean peak hydrogen excretion was 13.68 ± 2.83 and 10.26 ± 7.30 ppm at baseline and following rifaximin treatment, respectively (t = 1.98, p = 0.06).

Twelve of the subjects who fulfilled the inclusion criteria and were randomized at the screening visit had an expired CO level <10 ppm at the baseline visit, either because it was an early morning visit or because they had already reduced smoking.

Sustained reduction was measured by self reported cigarettes smoked a day and validated by the carbon monoxide level that was at least 1 ppm less than at baseline on each occasion it was checked.

An increase of more than 10 parts per million (ppm) over baseline in at least three samples within the measurement period was taken as evidence of bacterial overgrowth in the small bowel [ 12].

Both plasma and blood cell D/H were significantly above baseline values (see above) beginning at min 5: 192.8 ± 30.6 and 192.2 ± 30.8 ppm, respectively (Student t test for paired data, P < 0.0001); 95% confidence interval around the mean = 148 149 and 182 202 ppm for both plasma and blood cells at baseline and min 5, respectively.

At baseline, mean CO2 concentration for all schools was 1335 ppm (range: 763 2000 ppm).

In the third case, the temporal behaviour of ionospheric residuals is modelled as a Gauss-Markov process; the correlation time was set at 100 s, the process noise at 0.5 ppm of the baseline length, and the initial uncertainty of the ionosphere at 1.5 ppm of the receiver separation.