. Author manuscript; available in PMC: 2008 Jul 1.

Published in final edited form as: Am J Ophthalmol. 2007 May 2;144(1):1–6. doi: 10.1016/j.ajo.2007.02.047

Table 1.

Characteristics of the population by statin use at the 1998-2000 examination.

	Not taking statins		Taking statins
	N	Mean ± SD or %	N	Mean ± SD or %	P^*
Age, years	1756	66.8 ± 9.0	448	67.4 ± 8.2	0.20
Women	1061	60.4	232	51.8	<0.001
Men	695	39.6	216	48.2
History of smoking
Never	859	48.9	180	40.2	<0.001
Past	695	39.6	245	54.7
Current	202	11.5	23	5.1
Pack-years smoked, years	1749	13.7± 23.0	448	17.8 ± 25.5	0.002
Body mass index, kg/m²	1698	29.9 ± 5.7	430	31.3 ± 6.3	<0.001
Systolic blood pressure, mmHg	1715	130.7 ± 18.7	436	132.1 ± 18.4	0.23
Diastolic blood pressure, mmHg	1715	74.8 ± 10.1	435	73.4 ± 10.5	0.02
Hypertension, present	928	53.5	307	69.1
History of CVD, present	170	9.7	147	32.8	<0.001
Vitamin use
None	592	33.7	117	26.1	0.09
Other^†	369	21.0	124	27.7
Multi-vitamin	795	45.3	207	46.2

N=number of observations; SD=standard deviation; CVD=cardiovascular disease;

adjusted for age (where appropriate)

^†

includes single or other non-standard combination (e.g., B-complex) vitamins