Effects of a health worker-led 3-month yoga intervention on blood pressure of hypertensive patients: a randomised controlled multicentre trial in the primary care setting

Table 3 Intervention effects: results of multilevel mixed-effects linear regression

Outcome variable	Model 1^a		Model 2^b		Model 3^c
Outcome variable	B^d	95% CI^e	B^d	95% CI^e	B^d	95% CI^e
Systolic blood pressure	−7.66^***	−10.4, −4.93	− 7.41^***	−9.76, −5.06	−6.36^***	−8.63, − 4.10
Diastolic blood pressure	−3.86^**	− 6.65, − 1.06	−3.49^**	−6.13, − 0.86	−2.73^*	−5.06, − 0.41

^a Model included a dichotomous independent variable representing belonging to the intervention group (“1”) or control group (“0”) and trial centre as a second-level variable, and was adjusted for baseline systolic or diastolic blood pressure (depending on the outcome variable)
^b Adjusted for age, gender, marital status, ethnicity, education, occupation, income, smoking, alcohol consumption, physical activity, body mass index (BMI), resting heart rate, and baseline systolic or diastolic blood pressure (depending on the outcome variable)
^c Additionally adjusted for the difference in BMI between baseline and follow-up
^d Unstandardized regression coefficient
^e 95% confidence interval for B
^* p < 0.05
^** p < 0.01
^*** p < 0.001

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