Table 4.

Estimated regression coefficients, with 95% confidence intervals in brackets, in simple robust linear regression analyses with TB suspicion score and mean TB knowledge score as dependent variables (95% CI).

Factor4		TB Suspicion Score	TB Knowledge Score
Independent variable		Dependent variable	Dependent variable
Sector	Public	Ref.	Ref.
	Private	-1.71(-2.60, -0.82)*	-2.05(-2.87, -1.23)*
Gender	Female	Ref.	Ref.
	Male	0.30(-0.62, 1.22)	-0.08(-0.94, 0.77)
Nationality	Not-Omani	Ref.	Ref.
	Omani	0.76 (-0.39,1.91)	1.56 (0.47, 2.66)*
Duration of Practice	≤ 5 years	Ref.	Ref.
	> 5 years	-0.32(-1.60, 0.98)	-0.84 (-1.94, 0.26)
Attended TB training course during last 5 years	No	Ref.	Ref.
	Yes	0.67(-0.64, 1.98)	1.69(0.46, 2.91)*
Found/followed up a TB case last year	No	Ref.	Ref.
	Yes	1.36(0.39, 2.32)*	1.74(0.85, 2.62)*
TB Knowledge score		0.17(0.03–0.32)*	Not Applicable

For binary independent variables the coefficients are estimates of the difference between the means at the two levels.

* Statistically Significant.(p-value is less than 0.05)