Table 4. Multivariate logistic regression of the ability of participants sociodemographic and lifestyle characteristics to predict knowledge categories obtained on the Abridged Nutrition Knowledge Questionnaire (ANSKQ).
| Variable | Categories | Average knowledge (0–49) |
Good knowledge (50–65) |
Excellent knowledge (66–75) |
|||
|---|---|---|---|---|---|---|---|
| B | Exp(B) (95% CI) | B | Exp(B) (95% CI) | B | Exp(B) (95% CI) | ||
| Participant role | Coach Athlete |
0.40 0b |
1.49 (0.96, 2.32) - |
2.24 0b |
9.35 (4.13, 21.16)* | 3.56 0b |
35.05 (19.82, 61.99)* |
| Age | 18–25 years 26–35 years ≥ 36 years |
-0.19 -0.17 0b |
0.82 (0.59, 1.16) 0.85 (0.62, 1.15) - |
0.01 0.89 0b |
1.01 (0.32, 3.20) 1.02 2.44 (0.78, 6.09) |
-0.05 0.12 0b |
0.95 (0.45, 1.99) 1.12 (0.60, 2.09) |
| Gender | Female Male |
-0.07 0b |
0.94 (0.71, 1.24) - |
-0.03 0b |
0.97 (0.43, 2.18) - |
0.01 0b |
1.03 (0.57, 1.82) |
| BMI (kg/m2) | <18.5 18.5–24.9 25.0–29.9 ≥ 30.0 |
1.07 0.72 0.61 0b |
2.92 (1.17, 7.32)* 2.05 (1.15, 3.64)* 1.84 (1.02, 3.31)* - |
0.80 0.66 1.21 0b |
2.23 (0.18, 28.35) 1.94 (0.24, 15.88) 3.35 (0.42, 27.02) - |
-0.98 -0.09 -0.32 0b |
0.38 (0.07, 2.03) 0.92 (0.32, 2.63) 0.73 (0.25, 2.13) |
| Education level | High-school or less Diploma or bachelors Postgraduate |
-0.65 -0.39 0b |
0.52 (0.29, 0.93)* 0.68 (0.43, 1.06) - |
-0.30 -0.45 0b |
0.74 (0.17, 3.32) 0.64 (0.21, 1.97) - |
0.35 0.56 0b |
1.42 (0.39, 5.18) 1.76 (0.67, 4.64) - |
| Sport years | ≤ 1 year 2–3 years 6–9 years >10 years |
0.13 0.37 0.03 0b |
1.14 (0.70, 1.85) 1.45 (0.92, 2.28) 1.03 (0.59, 1.81) - |
-0.05 0.02 -0.84 0b |
0.95 (0.27, 3.39) 1.02 (0.32, 3.26) 0.43 (0.08, 2.46) - |
0.32 0.20 0.69 0b |
1.38 (0.54, 3.49) 1.23 (0.51, 2.95) 1.99 (0.76, 5.19) - |
| Sport type | High intensity Medium intensity Low intensity |
-0.04 0.13 0b |
0.96 (0.68, 1.35) 1.14 (0.81, 1.61) - |
0.61 0.25 0b |
1.83 (0.67, 5.01) 1.28 (0.44, 3.73) - |
-0.52 -0.46 0b |
0.60 (0.30, 1.19) 0.63 (0.31, 1.30) - |
| Sport frequency/week | 1–2 time/week 3–5 time/week > 5 times/week |
-0.55 -0.30 0b |
0.58 (0.38, 0.87)* 0.74 (0.50, 1.08) - |
-0.83 -0.76 0b |
0.44 (0.14, 1.36) 0.47 (0.16, 1.35) - |
-0.35 0.08 0b |
0.71 (0.29, 1.70) 1.09 (0.50, 2.39) - |
| Nutrition training Courses | No Yes |
0.36 0b |
1.44 (0.96, 2.14) - |
-3.83 0 |
0.02 (0.01, 0.06)* 0 |
-4.66 0b |
0.01 (0.004, 0.02)* |
Notes: The poor category is reference category; This parameter is set to zero because it is redundant; CI = Confidence interval; OR = Odds ratio.
*p-value≤ 0.05.
B: The estimated multinomial logistic regression coefficients for the models. BMI: Body Mass Index.