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Table 3 Standard multiple regression analysis between CKD knowledge score and participant characteristics

From: Public knowledge of chronic kidney disease evaluated using a validated questionnaire: a cross-sectional study

Characteristics β coefficient (95% CI) p value
Age range (years)
 18 – 29a   
 30–49 −0.06 (−1.56 to 0.25) 0.16
 50 + 0.04 (−0.57 to 1.43) 0.40
Education
 Did not complete highest level of schoola
 Completed highest level of school 0.01 (−0.99 to 1.28) 0.80
 Diploma/Vocational 0.11 (0.10 to 2.14) 0.03
 Higher degree or post graduate diploma/Bachelor degree 0.16 (0.58 to 2.79) 0.003
Occupation
 Do not worka
Unskilled/Labourer −0.04 (−2.35 to 0.43) 0.18
 Technical/Skilled −0.01 (−1.27 to 1.10) 0.89
 Sales/Clerical −0.02 (− 1.23 to 0.67) 0.57
 Professional/Managerial 0.06 (−0.32 to 1.64) 0.11
 Other occupations 0.05 (−0.39 to 2.43) 0.16
Marital status
 Single/Never marrieda
 Married/Common law, De-facto or Living with a partner 0.10 (0.21 to 1.80) 0.01
 Divorced/Separated/Widowed 0.10 (0.28 to 2.48) 0.01
Family history of kidney failure
 Yes vs No 0.08 (0.39 to 3.24) 0.01
Medical condition(s)/illness(es) that require regular medications
High blood pressure known as hypertension
 Yesa   
 No −0.02 (−1.09 to 0.55) 0.52
I don’t know −0.09 (−6.84 to 0.29) 0.07
Raised blood sugar known as diabetes
 Yesa   
 No −0.09 (−2.54 to − 0.22) 0.02
 I don’t know −0.07 (−5.37 to 0.79) 0.15
Heart problems such as heart failure or heart attack
 Yesa   
 No 0.01 (−1.29 to 1.86) 0.73
 I don’t know 0.03 (−2.31 to 4.22) 0.57
Personal history of stroke
 Yesa
 No −0.09 (−4.32 to 0.27) 0.08
 I don’t know −0.16 (−8.43 to −1.15) 0.01
  1. aReference; R2 for the model = 0.095
  2. Bold numbers indicate p-values which were found to be statistically significant in the multivaraiate analysis