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Table 4 Beta regression (95% CI) of 6-year changes of fasting plasma glucose and waist circumference per increment each Z score of dietary carbohydrate and protein indices

From: Macronutrients quality indices and risk of metabolic syndrome and its components in Iranian adults

Dietary indices*

Total population(n = 1738)

Healthy(n = 904)

Metabolic syndrome patients (n = 834)

B (95% CI)

P-value

B (95% CI)

P-value

B (95% CI)

P-value

FPG changes

      

CQI

-0.31(-1.15– 0.52)

0.466

0.14(-0.64–0.93)

0.716

-0.49(-1.92–0.92)

0.492

GI(per 1000Kcal)

-0.92(-2.58– 0.74)

0.278

-0.90(-2.49–0.68)

0.262

-0.92(-3.66–1.82)

0.511

Fiber intake(g/1000Kcal)

-0.17(-2.17–1.78)

0.862

0.06(-1.69–1.82)

0.943

-0.05(-3.48–3.36)

0.973

Whole grain/total grains

0.07(-0.81– 0.95)

0.872

0.32(-0.49–1.15)

0.433

0.20(-1.30–1.70)

0.790

SCHO /TCHO

-0.72(-3.07–1.62)

0.544

-0.43(-2.68–1.81)

0.705

-0.68(-4.56–3.19)

0.728

Protein score

-0.07(-0.89–0.73)

0.848

0.44(-0.28–1.17)

0.229

-0.50(-1.92–0.91)

0.487

Total protein (% of energy)

0.53(-0.34–1.41)

0.232

0.38(-0.42–1.19)

0.349

0.39(-1.10–1.90)

0.604

Plant protein

0.12(-0.71–0.97)

0.764

0.47(-0.26–1.22)

0.208

-0.12(-1.62–1.38)

0.875

Animal protein

0.45(-0.42–1.32)

0.311

0.06(-0.73–0.86)

0.871

0.44(-1.06–1.96)

0.562

PAR

-0.39(-1.35–0.57)

0.427

-0.10(-0.95–0.73)

0.799

-0.12(-1.89–1.64)

0.889

Waist changes

      

CQI

-0.04(-0.40–0.31)

0.815

0.11(-0.38–0.60)

0.656

-0.10(-0.62–0.40)

0.681

GI

-0.11(-0.82–0.60)

0.762

-0.06(-1.07–0.93)

0.892

-0.15(-1.14–0.83)

0.759

Fiber intake

0.38(-0.45–1.22)

0.366

0.17(-0.93–1.28)

0.756

0.70(-0.53–1.94)

0.264

Whole grain/total grains

-0.22(-0.60–0.15)

0.244

0.05(-0.46–0.57)

0.835

-0.33(-0.87–0.21)

0.220

SCHO /TCHO

-0.60(-1.60–0.39)

0.237

-0.30(-1.72–1.11)

0.673

-0.82(-2.21–0.55)

0.241

Protein score

-0.06(-0.41–0.28)

0.726

0.13(-0.32–0.59)

0.567

-0.20(-0.72–0.30)

0.431

Total protein (% of energy)

-0.25(-0.63–0.11)

0.178

0.03(-0.47–0.54)

0.887

-0.54(-1.09–0.00)

0.048

Plant protein

-0.06(-0.43–0.29)

0.710

0.04(-0.42–0.51)

0.839

-0.13(-0.67–0.41)

0.630

Animal protein

-0.17(-0.55–0.19)

0.347

0.02(-0.47–0.52)

0.924

-0.44(-0.98–0.10)

0.112

PAR

0.06(-0.35–0.48)

0.763

-0.04(-0.58–0.49)

0.864

0.30(-0.33–0.94)

0.348

  1. Abbreviations FPG: fasting plasma glucose, CQI: carbohydrate quality index, PAR: Plant-to-animal protein ratio, SCHO /TCHO: solid carbohydrates/ total carbohydrates, GI: Glycemic index
  2. Analyses were adjusted for age and sex, smoking (yes, no), physical activity, energy intake, and baseline values for each dependent metabolic syndrome component