Descriptive Cross-Sectional Study on Knowledge, Awareness, and Adherence to Medication among Hypertensive Patients at a Tertiary Care Centre in Colombo District, Sri Lanka

Table 1

The selected sociodemographic characteristics and risk factors among hypertensive patients.

Selected variables		Numbers	Percentage	95% confidence interval
Sex	Male	180	46.9	1.48–1.58
	Female	204	53.1
Age (years)	20–29	8	2.1	4.40–4.66
	30–39	15	3.9
	40–49	50	13.0
	50–59	114	29.7
	60–69	105	27.3
	70–79	75	19.5
	80–89	16	4.2
	>90	1	0.3
Ethnicity	Sinhala	323	84.1	1.18–1.29
	Tamil	34	8.9
	Muslim	25	6.5
	Others	2	0.5
Educational level	No schooling	19	4.9	2.90–3.10
	Primary level	103	26.8
	Ordinary level	150	39.1
	Advanced level	90	23.4
	Undergraduate level	14	3.6
	Postgraduate level	8	2.1
Occupation	Housewife	151	39.3	2.70–3.14
	Unemployed	46	12.0
	Self-employed	91	23.7
	Graduate student	4	1.0
	Business	30	7.8
	Officers	21	5.5
	Professionals	16	4.2
	Retired officers	23	6.0
	Others	2	0.5
Monthly income (Sri Lanka rupees)	Rs < 14,999	94	24.5	2.63–2.99
	Rs 15,000–29,999	108	28.1
	Rs 30,000–44,999	82	21.4
	Rs 45,000–59,999	45	11.7
	Rs 60,000–74,999	22	5.7
	Rs 75,000–89,999	12	3.1
	Rs > 90,000	7	1.8
	No income	14	3.6
Smoking status	Never smoked	278	72.4	1.41–1.63
	Ex smoker	63	16.4
	Current smoker	17	4.4
	1–3 days/week	11	2.9
	4–6 days/week	6	1.6
	Everyday	9	2.3
Alcoholic status	Never took alcohol	275	71.6	1.32–1.48
	Ex alcoholic	86	22.4
	Current alcoholic	8	2.1
	1–3 days/week	9	2.3
	4–6 days/week	5	1.3
	Everyday	1	0.3
Body Mass Index (Kg/m^2)	Underweight	10	2.6	2.40–2.53
	Normal	211	54.9
	Overweight	137	35.7
	Obese	26	6.8
Serum LDL cholesterol (mg/dL)	<100	147	38.3	1.89–2.12
	100–149	146	38.0
	150–199	64	16.7
	>200	1	0.3
	Not available	26	6.8
Comorbidities	IHD	152	39.6	3.97–4.55
	Stroke	7	1.8
	CKD	23	6.0
	IHD and CKD	24	6.3
	IHD and stroke	5	1.3
	IHD, CKD, and stroke	4	1.0
	None	169	44.1