Question

	Viral Load suppress           ed	Viral load not suppressed	Total
In continuous care	200   a	100 b	300
Not in continuous care	150    c	350   d	500
Total	350	450	800

Question 1 The measure of association to calculate ?my answer (positive association)

Question 2 calculate your work and round to the 100^th decimal

my calculation (a*d)/(c*b) =1.428

Answer 1

Question 1

Proportion of Viral Load suppress in continuous care = 200 / 300 = 0.667

Proportion of Viral Load suppress in no continuous care = 150 / 500 = 0.3

Since the Proportion of Viral Load suppress in continuous care is greater than the Proportion of Viral Load suppress in no continuous care, there is a positive association between Viral Load suppress and Continuous care.

Question 2

The answer depends on which of the measure of association you want to calculate.

Odd Ratio = (a*d)/(c*b) =1.428

From the table, let e = 300, f = 500, g = 350, h = 450

Phi Coefficient = (ad - bc) /

= (200 * 350 - 150 * 100) /

= 0.3578