Prevalence, awareness and control of hypertension in Malaysia from 1980-2018: A systematic review and meta-analysis

Table 4 Sensitivity analysis

Variable	Number of studies, n	Total sample size, n	Total hypertensive, n	Prevalence, %	95%CI	P value	I2, %
Overall prevalence	56	241796	94996	29.7	26.1, 33.3	< 0.001	99.7
Upon removal of studies with poor quality studies	51	237181	93473	28.5	26.0, 31.2	< 0.001	99.4
Upon removal of studies with nonrandom sampling	19	131904	59786	29.7	26.2, 33.4	< 0.001	98.6
Upon removal of studies with sample size < 100	52	131904	59786	28.0	25.6, 30.6	< 0.001	99.3
Upon removal of studies with large sample size > 500	47	28335	8943	28.4	23.3, 33.4	< 0.001	99.2
Upon removal of poor-quality studies, nonrandom studies and studies with sample size < 100	12	46618	16031	26.3	21.6, 31.6	< 0.001	99.2

CI: Confidence interval.