Table 4 Multi linear regression of the respondents perceived knowledge, attitude, and barriers

Intercept

19.61*[ 18.52; 20.60]

14.01*[12.81; 15.20]

19.82*[18.54; 21.23]

Gender

 Male

Ref.

Ref.

Ref.

 Female

-0.04[-0.61; 0.54]

-1.72*[-2.43; -1.11]

-0.15[ -1.32; 0.21]

Age Category

 20–29

Ref.

Ref

Ref.

 30–39

-0.52[-1.51; 0.53]

-0.64[-1.81; 0.53]

0.01[-1.32; 1.43]

 40–49

-0.22[-1.24; 1.64]

0.14[ -1.52; 1.74]

-0.74[-2.53; 1.24]

 50 or above

-0.92[− 0.61; 2.52]

-0.14[ -1.94; 1.63]

-0.05[ -2.21; 1.93]

Education

 Bachelor

Ref.

Ref

Ref.

 Diploma/Master

0.33[-0.52; 1.12]

-0.60[ -1.53; 0.32]

-0.08[-1.13; 0.94]

 Ph.D./Fellowship

0.62[ -0.34; 1.50]

0.34[ -0.73; 1.33]

-0.32[ -1.54; 0.82]

Workplace region

 Metropolis (Cairo/ Alex.)

Ref.

Ref.

Ref.

 Middle Delta

-0.24[-1.01; 0.60]

0.30[-0.60; 1.24]

-0.91*[-2.12; -0.01]

 Upper Egypt

-0.34[-1.23; 0.62]

-0.10[-1.24; 0.93]

0.41[-0.83; 1.62]

 West Delta

-0.22[-0.92; 0.53]

0.34[-0.54; 1.13]]

-1.33*[ -2.22; -0.40]

Workplace category

 Private only

Ref.

Ref.

Ref.

 Governmental only

-0.63[ -1.62; 0.42]

-0.12[-1.12; 0.91]

1.33*[0.10; 2.54]

 University Only

-0.50[ -1.50; 0.52]

-0.132[-1.20; 0.92]

0.22[-1.21; 1.43]

 Mixed

0.24[ -0.71; 1.23]

0.34[ -0.74; 1.42]

0.41[-0.83;2.92]

Years of experience

 Less than 5 years

Ref

Ref.

Ref.

 5–10 years

1.02*[0.04; 2.10]

0.90[-0.22; 1.92]

0.24[ -1.12; 1.54]

 More than 10 years

1.30*[ 0.21; 2.70]

-0.131[-1.72; 1.50]

1.13[ -0.84; 2.92]

Proportion of older patients /day

 Less than 10%

Ref.

Ref.

Ref.

 11–30%

1.01*[0.41; 1.62]

0.70*[0.06; 1.40]

-1.10*[-1.91; -0.32]

 More than 30%

1.50*[0.71; 2.22]

0.73*[ 0.13; 1.6]

-0.32[ -1.41; 0.74]

Model parameters

 F-statistics

4.55

3.8

12.11

 DF

16, 404

16, 404

16, 404

 p-value

< 0.00001

< 0.00001

0.0007