| Literature DB >> 31473598 |
Mengyang Di1,2, Chen Mao3, Zuyao Yang2, Hong Ding4, Qu Liu4, Shuiming Liu4, Hongbo Guo5, Kunhua Jiang6, Jinling Tang7,8.
Abstract
OBJECTIVE: To evaluate whether evidence-based, individualised (EBI) counselling regarding hypertension and the treatment would affect medication use in insured patients with mild hypertension in China.Entities:
Keywords: antihypertensive treatment; evidence-based medicine; individualised counselling; primary care; randomised controlled trial
Mesh:
Substances:
Year: 2019 PMID: 31473598 PMCID: PMC7286038 DOI: 10.1136/bmjebm-2019-111197
Source DB: PubMed Journal: BMJ Evid Based Med ISSN: 2515-446X
Figure 1Participant flow diagram. BP, blood pressure; CVD, cardiovascular disease.
Baseline characteristics of the participants in control and intervention groups
| Characteristics | Overall | Control | Intervention |
| Demographic characteristics | |||
| Males, n (%) | 103 (49.0) | 52 (48.6) | 51 (49.5) |
| Age at recruitment, mean (SD), year | 54.3 (7.8) | 54.5 (7.8) | 54.1 (7.8) |
| Education more than high school, n (%) | 56 (26.7) | 27 (25.2) | 29 (28.2) |
| Insurance in Shenzhen, n (%) | 120 (57.1) | 60 (56.1) | 60 (58.3) |
| Modifiable CVD risk factors | |||
| BMI, mean (SD), kg/m2 | 25.2 (3.2) | 24.7 (3.0) | 25.7 (3.3) |
| Systolic blood pressure, mean (SD), mmHg | 133.4 (12.2) | 132.5 (12.4) | 134.6 (11.9) |
| Diastolic blood pressure, mean (SD), mmHg | 88.0 (9.4) | 87.0 (9.5) | 89.0 (9.2) |
| Total cholesterol, mean (SD), mmol/l | 5.3 (1.0) | 5.3 (0.9) | 5.3 (1.0) |
| 10-year CVD risk estimated, median (IQR), % | 7.0 (4.0, 11.0) | 7.0 (4.0, 12.0) | 7.0 (4.0, 11.0) |
| Family history | |||
| Hypertension, n (%) | 161 (76.7) | 81 (75.7) | 80 (77.7) |
| CVD history, n (%) | 23 (11.0) | 11 (10.3) | 12 (11.8) 2 |
| Medical history related to hypertension | |||
| Types of medicine taken, median (IQR) | 1.0 (1.0, 2.0) | 1.0 (0.3, 2.0) | 1.0 (1.0, 2.0) |
| Types of antihypertensive medicine taken median (IQR) | 1.0 (1.0, 2.0) | 1.0 (1.0, 2.0) | 1.0 (1.0, 1.5) |
| Years since hypertension diagnosed, median (IQR), year | 4.7 (2.2, 10.2) | 5.3 (2.4, 10.1) | 4.2 (2.0, 10.1) |
| Years of taking antihypertensive medicines, median (IQR), year | 4.1 (1.8, 9.7) | 4.8 (1.9, 9.8) | 3.1 (1.5, 7.9) |
| Knowledge about CVDs | |||
| Correctly answered all questions, n (%) | 19 (9.1) | 10 (9.4) | 9 (8.8) |
| Self-estimated 10 year CVD risk, median (IQR), % | 50.0 (50.0, 75.0) | 50.0 (30.0, 70.0) | 60.0 (50.0, 80.0) |
| Self-estimated absolute risk reduction by antihypertensive medicines, median (IQR), % | 30.0 (20.0, 40.0) | 30.0 (20.0, 37.5) | 30.0 (20.0, 50.0) |
| History of antihypertensive treatment | |||
| Taking medications, n (%) | 131 (62.4) | 63 (58.9) | 68 (66.0) |
| Good adherence, n (%) | 91 (43.4) | 43 (40.2) | 48 (46.6) |
| CVD-related lifestyle factors | |||
| Smoking, n (%) | 31 (14.8) | 20 (18.7) | 11 (10.7) |
| Alcohol drinking, n (%) | 31 (14.7) | 12 (11.2) | 19 (18.4) |
| Physical exercise, n (%) | 142 (67.6) | 76 (71.0) | 66 (64.1) |
| High salt intake, n (%) | 56 (32.6) | 26 (29.5) | 30 (35.7) |
| High fat intake, n (%) | 43 (25.3) | 18 (20.5) | 25 (30.5) |
BMI, body mass index; CVD, cardiovascular disease; IQR, interquartile range; SD, standard deviation.
Effects of individualised, evidence-based counselling on treatment rate and adherence to treatment
| Outcome variables | Control | Intervention | OR (95% CI) | ||
| Number | Events (%)* | Number | Events (%)* | ||
| Use of antihypertensive drugs | |||||
| Baseline | 107 | 63 (58.9) | 103 | 68 (66.0) | 1.36 (0.77 to 2.38) |
| 2-week follow-up | 105 | 63 (58.9) | 100 | 68 (66.0) | 1.36 (0.77 to 2.38) |
| 3-month follow-up | 101 | 69 (64.5) | 97 | 67 (65.0) | 1.02 (0.58 to 1.81) |
| 6-month follow-up | 98 | 62 (57.9) | 95 | 67 (65.0) | 1.35 (0.77 to 2.36) |
| Good adherence | |||||
| Baseline | 107 | 43 (40.2) | 103 | 48 (46.6) | 1.30 (0.75 to 2.24) |
| 2-week follow-up | 105 | 44 (41.1) | 100 | 50 (49.5) | 1.35 (0.78 to 2.33) |
| 3-month follow-up | 101 | 50 (46.7) | 97 | 45 (43.7) | 0.88 (0.51 to 1.52) |
| 6-month follow-up | 98 | 43 (40.2) | 95 | 45 (43.7) | 1.15 (0.67 to 2.00) |
*Percentages were calculated following the ‘intention-to-treat’ principle.
CI, confidence interval; OR, odds ratio.
Differences in study design and context between a previous highly relevant survey and the current randomised controlled trial
| Characteristics | The previous survey | This trial |
| Study design | Pre–post comparison | Paralleled comparison |
| Outcomes of interest | Willingness to pay for/to take the treatment | Actual medication use |
| Percent with hypertension | 14.9 | 100 |
| Method of payment | Out of the pocket | Insurance |