Fig. 4.

Differences in the reminder effect on primary and secondary outcomes by age, sex, education, baseline hypertension level, and baseline misconception score, Punjab, India. Notes: Follow-up attendance takes on the values 1 (attended) or 0 (not attended), with related coefficients expressed as percentage points. Controlled or stage 1 hypertension indicates systolic BP < = 159 mmHg or diastolic BP < = 99 mmHg and hypertension stage 2 indicates systolic BP > = 160 mmHg or diastolic BP > = 100 mmHg. Misconception score ranges from 0 to 7 and the corresponding coefficients are in units. Of the 388 participants composing the final sample, 360 (92.8%) provided answers to the 7 hypertension-related questions. Of the remaining 28, 12 did not pick up the phone, 2 participants were not contacted due to an implementation error, and 14 did not complete the survey. All models include facility fixed effects. The x-axis displays reminder effects within each subgroup, with error bars representing 95% confidence intervals