. 2007 Jul;18(5):282–289.

Table 3. Mean (95% CI) Cardiovascular Disease Risk Factors Of Men In Different Income Categories.

Risk factor (means and 95% confidence interval)	Total household income category (R/month)
Risk factor (means and 95% confidence interval)	R0-100	R101-500	R501-1000	R1001-2000	R2001-3000	R3000+
Number (n)	101	194	159	111	40	50
Age (years)	35.1^a	42.0^abcde	37.3^b	35.2^c	33.9^d	36.2^e
Age (years)	32.1−38.2	39.8−44.2	34.9−39.7	32.3−38.0	29.1−38.7	31.9−40.5
Serum lipids (mmol/l)
Total cholesterol	3.9^a	3.9^b	3.9^c	3.9^d	4.2	4.6^abcd
Total cholesterol	3.7−4.1	3.8−4.1	3.8−4.1	3.7−4.1	3.9−4.5	4.3−4.8
HDL cholesterol	1.2	1.2	1.2	1.3	1.2	1.1
HDL cholesterol	1.1−1.3	1.1−1.3	1.1−1.2	1.2−1.3	1.2−1.3	1.2−1.3
LDL cholesterol	2.3^ab	2.3^c	2.3^d	2.3^ef	2.6^ae	3.0^bcdf
LDL cholesterol	2.1−2.4	2.2−2.5	2.2−2.5	2.1−2.4	2.3−2.9	2.7−3.2
Triglycerides	1.1a	1.1b	1.3c	1.1	1.3	1.4^abc
Triglycerides	1.0−1.3	1.0-1.2	1.1−1.4	1.0−1.3	1.0−1.5	1.2−1.7
Serum glucose (mmol/l)	5.0	4.9	4.8	4.8	4.8	4.6
Serum glucose (mmol/l)	4.7−5.2	4.7−5.1	4.6−5.0	4.5−5.0	4.4−5.3	4.3−5.0
Plasma fibrinogen (g/l)	3.2	3.2	3.1	3.1	2.9	3.3
Plasma fibrinogen (g/l)	2.9−3.4	3.0−3.3	2.9−3.2	2.9−3.3	2.6-3.2	3.0−3.6
Systolic blood pressure (mmHg)	127	127	127	126	126	127
Systolic blood pressure (mmHg)	124−130	125−130	125−130	123−129	120−131	122−132
Diastolic blood pressure (mmHg)	74^ab	78^a	77	77	76	80^b
Diastolic blood pressure (mmHg)	72−77	76−79	75−79	75−79	73−80	77−84
Body mass index (kg/m²)	19.9^abcd	20.9^ae	21.1^bf	20.8^g	22.1^c	22.8^defg
Body mass index (kg/m²)	19.2−20-6	20.4−21.4	20.5−21.6	20.1−21.5	20.9−23.2	21.8−23.8

^a,b,c,… Means with the same symbol differ significantly (p ≤ 0.05).