Table 8.
Adherence to treatment by hypertensive patients. Values are numbers (percentages) of patients unless specified otherwise
| Variable | Time (months) | 3 month group | 6 month group | Difference (% (SE)) | Equivalence 90% Cl* |
|---|---|---|---|---|---|
|
Do you ever forget to take your blood pressure pills?
|
0
|
110/298 (37)
|
83/297 (29)
|
7.50 (3.91)
|
1.07 to 13.92
|
|
36
|
78/263 (30)
|
71/263 (27)
|
2.96 (3.92)
|
−3.48 to 9.41
|
|
|
Are you careless at times about taking your medicine?
|
0
|
26/298 (9)
|
24/297 (8)
|
0.61 (2.04)
|
−2.74 to 3.96
|
|
36
|
19/263 (7)
|
23/263 (9)
|
−1.56 (2.24)
|
−5.25 to 2.13
|
|
|
Do you sometimes stop taking your medicine?
|
0
|
7/298 (2)
|
7/297 (2)
|
0.01 (1.35)
|
−2.21 to 2.22
|
|
36
|
3/263 (1)
|
5/263 (2)
|
−0.76 (1.24)
|
−2.80 to 1.28
|
|
|
If you feel worse when you take the medicine, do you stop taking it?
|
0
|
17/298 (6)
|
11/297 (4)
|
1.92 (1.74)
|
−0.95 to 4.78
|
| 36 | 10/263 (4) | 12/260 (4) | −0.81 (1.65) | −3.52 to 1.90 |
Standard error of the difference is estimated by the delta method.18
*
If the 90% Cl falls entirely within the equivalence range (±10%), the groups are considered equivalent.