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. Author manuscript; available in PMC: 2013 Jun 5.
Published in final edited form as: Ann Intern Med. 2010 Jul 6;153(1):1–7. doi: 10.1059/0003-4819-153-1-201007060-00003

Table 1.

Characteristics of users and non-users of erectile dysfunction drugs among men aged 40 and older with employer-provided health insurance

Non-users Users
N 1,376,838 33,968
Average age 58.6 62.2
Medical co-morbidities (%)
Cancer 4.6 10.6
COPD 0.9 1.4
Heart disease 10.3 14.7
Depression 1.9 4.14
Diabetes 7.5 15.0
Hypercholesterolemia 6.0 12.7
Hypertension 14.7 29.9
STD rate in prior year (per 100,000 men)
Chlamydia 15.0 41.2
Gonorrhea* 7.9 11.8
Herpes* 8.1 8.8
HIV 115.3 217.9
Syphilis* 7.3 14.7
Other* 8.4 5.9
All STDs 156.8 288.5
All STDs but HIV 45.9 79.5

Notes: Users and non-users were defined according to whether they filled one or more claims for either sildenafil, vardenafil, or tadalafil. All comparisons between users and non-users, except those specified by asterisk, are significant at the p<0.005 level. Those specified by asterisk all had p-values > 0.10.