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Table 2 Patient responses to the six-item Simplified Medication Adherence Questionnaire (SMAQ) at baseline (T1) and follow-up (T2) in the intervention and control groups of the Ethiopian HIV/AIDS parent study

From: Reliability, validity and measurementĀ invariance of the Simplified Medication Adherence Questionnaire (SMAQ) among HIV-positive women in Ethiopia: a quasi-experimental study

Question

T1 Responses to adherence questions (%)

T2 Responses to adherence questions (%)

(X2(df) p-value)

Control: nā€‰=ā€‰192

Intervention: nā€‰=ā€‰209

Control: nā€‰=ā€‰256

Intervention: nā€‰=ā€‰265

Do you ever forget to take your medicine?

Yes 60 (31)

Yes 76 (36)

Yes 66 (26)

Yes 77 (29)

(X2(dfā€‰=ā€‰3)ā€‰=ā€‰6.39 pā€‰=Ā 0.09

No 132 (69)

No 133 (64)

No 190 (74)

No 188 (71)

Are you careless at times about taking your medicine?

Yes 23 (12)

Yes 31 (15)

Yes 21 (8)

Yes 30 (11)

(X2(dfā€‰=ā€‰3)ā€‰=ā€‰4.97 pā€‰=Ā 0.17

No 169 (88)

No 178 (85)

No 233 (92)

No 235 (89)

Sometimes if you feel worse, do you stop taking your medicines?

Yes 14 (7)

Yes 19 (9)

Yes 21 (8)

Yes 24 (9)

(X2(dfā€‰=ā€‰3)ā€‰=ā€‰0.58 pā€‰=Ā 0.90

No 178 (93)

No 190 (91)

No 233 (92)

No 241 (91)

Thinking about the last week. How often have you not taken your medicine?

Never 162 (84)

Never 169 (81)

Never 222 (87)

Never 223 (84)

(X2(dfā€‰=ā€‰3)ā€‰=ā€‰2.97 pā€‰=Ā 0.40

1ā€“2 times 22 (11)

1ā€“2 times 33 (16)

1ā€“2 times 27 (11)

1ā€“2 times 33 (12)

3ā€“5 times 6 (3)

3ā€“5 times 7 (3)

3ā€“5 times 5 (2)

3ā€“5 times 7 (3)

ā€‰>ā€‰5 times 2 (1)

>ā€‰5 times 0 (0)

>ā€‰5 times 2 (1)

>ā€‰5 times 2 (1)

Did you not take any of your medicine over the past weekend?

Yes 9 (5)

Yes 15 (7)

Yes 13 (5)

Yes 11 (5)

(X2(dfā€‰=ā€‰3)ā€‰=ā€‰2.33 pā€‰=Ā 0.51

No 178 (95)

No 194 (93)

No 235 (95)

No 254 (95)

Over the past 3ā€‰months, how many days have you not taken any medicine at all?

ā‰¤ 2ā€‰days 183 (95)

ā‰¤ 2ā€‰days 189 (90)

ā‰¤ 2ā€‰days 227 (89)

ā‰¤ 2ā€‰days 244 (92)

(X2(dfā€‰=ā€‰3)ā€‰=ā€‰6.64 pā€‰=Ā 0.08

ā€‰>ā€‰2ā€‰days 9 (5)

>ā€‰2ā€‰days 20 (10)

>ā€‰2ā€‰days 28 (11)

>ā€‰2ā€‰days 21 (8)