Table 6

Linear regression analysis of factors independently associated with patient knowledge score (N=6459 drugs dispensed)*

Factors independently associated with patient knowledge scoreNo of drugsUnstandardised coefficient B† (95% CI)t valuep value
*Only factors with p values <0.20 in the bivariate analysis were included in the linear regression.
†B is the regression coefficient, reflecting the slope of the least square line defined by the regression equation for a multivariate linear regression: y = a + b1x1+ b2x2+ …. bnxn + e.
Dispensers’ qualification
    Uneducated (reference)28490.00
    Family welfare educator9020.07 (0.03 to 0.15)2.060.039
    Nurse/pharmacy technician27080.27 (0.18 to 0.36)6.150.0001
Labelling score (continuous variable)0.16 (0.14 to 0.17)20.330.0001
Diagnosis
    Not specified (reference)19350.00
    Specified45240.07 (0.02 to 0.13)2.720.005
Time for advice (continuous)–0.0007 (–0.002 to –0.0001)–2.840.005
Prescriber qualification
    Not nurse (reference)10640.00
    Nurse53950.09 (0.02 to 0.15)2.800.01
Prescribers’ practice
    0–3 years (reference)21490.00
    4–11 years20960.10 (0.04 to 0.16)3.200.001
    >11 years22140.08 (0.02 to 0.13)2.620.009
Age of patient
    >31 years (reference)24420.00
    16–31 years21630.25 (0.19 to 0.30)8.840.0001
    0–15 years18540.22 (0.16 to 0.28)7.270.0001
No of drugs dispensed
    >2 (reference)35650.00
    <328940.13 (0.08 to 0.18)5.290.0001
Generic prescription
    All (reference)47950.00
    Not all16640.07 (0.02 to 0.12)2.540.01
Health district
    Ngami (reference)21370.00
    Gaborone22270.32 (0.21 to 0.42)6.140.0001
    Kgalagadi20950.03 (–0.03 to 0.09)0.090.32