Table 3.
Associations between general characteristics and scores of knowledge in multivariate stepwise linear regression analysis
| General |
Risk factors |
Symptoms |
Diagnosis and treatment |
Complications |
Total score |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Characteristics | b | p | b | p | b | p | b | p | b | p | b | p |
| Gender | – | – | – | – | – | – | ||||||
| Age | – | −0.344 | 0.042 | 0.248 | 0.011 | – | −0.399 | 0.032 | – | |||
| Grade | 0.207 | <0.001 | 0.41 | <0.001 | – | – | 0.549 | <0.001 | 0.975 | <0.001 | ||
| Specialty | −0.152 | 0.043 | – | −0.433 | <0.001 | −0.128 | 0.041 | −0.614 | <0.001 | −1.529 | <0.001 | |
| Academic performance | – | – | – | 0.114 | 0.044 | – | 0.621 | 0.012 | ||||
| BMI | – | – | – | – | – | – | ||||||
| Skipping breakfast (>2 days/week) | – | – | – | – | – | – | ||||||
| Physical activity (<3 days/week) | – | – | – | 0.161 | 0.011 | – | – | |||||
| Sleep time (<7 hours/day) | – | – | – | – | – | – | ||||||
| Relatives or friends with diabetes | −0.101 | 0.045 | −0.216 | 0.006 | – | – | – | −0.502 | 0.008 | |||
b: regression coefficient, p: p Value: not be included in the linear regression models using stepwise method (p in<0.05, p out>0.10).
The independent variables in the linear regression models were coded as the following: Gender (men=1, women=2), age (≤20=1, >20=2), grade (grade 1=1, grade 2=2, grade 3=3, grade 4=4).
Specialty (medical=1, non-medical=2), academic performance (worse=1, good=2, better=3), BMI (<18.5=1, 18.5–23.9=2, >23.9=3, missing value=4), skipping breakfast (yes=1, no=2).
Physical activity (<3 days/week=1, ≥3 days/week=2), sleep time (<7 hours/day=1, ≥7 hours/day=2), relatives or friends with diabetes (yes=1, no=2, unknown=3).
BMI, body mass index.