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Table 1 Odds ratios of low salivary amylase for high serum ketones and low RQ

From: The association of low serum salivary and pancreatic amylases with the increased use of lipids as an energy source in non-obese healthy women

 

Normal-high serum salivary amylase N = 27

Low serum salivary amylase N = 33

P values

High serum 3-HBA, n (%)

10 (32.3)

21 (67.7)

 

Odds ratios (95% ICs)

Model 1

1 (reference)

2.98 (1.04–8.55)

0.04

Model 2

1 (reference)

3.40 (1.12–10.3)

0.03

Model 3

1 (reference)

4.40 (1.32–14.7)

0.02

High serum AA, n (%)

9 (33.3)

23 (69.7)

P values

 

Odds ratios (95% ICs)

Model 1

1 (reference)

4.60 (1.54–13.7)

0.006

Model 2

1 (reference)

5.42 (1.70–17.3)

0.004

Model 3

1 (reference)

6.64 (1.91–23.1)

0.003

Low RQ, n (%)

7 (25.9)

13 (39.4)

P values

 

Odds ratios (95% ICs)

Model 1

1 (reference)

1.86 (0.61–5.63)

0.27

Model 2

1 (reference)

1.96 (0.62–6.21)

0.25

Model 3

1 (reference)

1.87 (0.56–6.20)

0.31

  1. Model 1: unadjusted
  2. Model 2: adjusted for age and BMI as continuous variables
  3. Model 3: model 2 with additional adjustments for HbA1c and eGFR as continuous variables
  4. Low serum salivary amylase: < 60 U/L (vs. normal-high serum salivary amylase, ≥ 60 U/L)
  5. High serum 3-Hydroxybutyric acid ≥ 24 μmol/L (vs. normal serum 3-Hydroxybutyric acid, < 24 μmol/L)
  6. High serum acetoacetic acid ≥ 17 μmol/L (vs. normal serum acetoacetic acid, < 17 μmol/L)
  7. Low RQ: < 0.766 (vs. normal-high RQ, ≥ 0.766)
  8. AA, acetoacetic acid; BMI, body mass index; eGFR, estimated glomerular filtration rate; 3-HBA, 3-Hydroxybutyric acid; RQ, respiratory quotient