Table 1

Rate of Clostridium difficile infection by previous diagnosis of major depression in Medicare beneficiaries
Characteristics Sample, n (%) No depression Depression
Ratea 95% CI Ratea 95% CI
Age at first interviewb
 <60 years 5277 (31.4) 125.1 82.2 to 168.0 332.9 193.5 to 472.2
 60 to 75 years 7258 (43.3) 178.2 145.2 to 211.1 239.8 182.9 to 296.7
 >75 years 4246 (25.3) 301.0 241.6 to 360.3 321.6 213.4 to 429.9
Gender
 Men 7352 (43.8) 179.6 145.5 to 213.6 268.9 163.5 to 374.3
 Women 9429 (56.2) 212.2 173.6 to 250.8 289.3 233.6 to 345.1
Race
 African-American 2232 (13.3) 221.5 136.7 to 306.2 346.4 173.6 to 519.3
 Other 14549 (86.7) 193.1 161.7 to 224.5 275.1 214.5 to 335.7
Ethnicity
 Mexican-American 700 (4.2) 243.7 77.3 to 410.1 313.1 65.6 to 560.7
 Other Hispanic 486 (2.9) 204.9 272.4 to 382.6 234.2 129.8 to 338.6
 Non-Hispanic 15595 (92.9) 195.1 165.5 to 224.6 283.6 222.3 to 344.9
Body mass index
 <18.5 kg/m2 366 (2.2) 348.2 87.9 to 608.6 475.5 115.3 to 835.6
 18.5 to 24.9 kg/m2 6311 (37.6) 185.0 149.2 to 220.8 279.0 185.7 to 372.2
 25.0 to 29.9 kg/m2 6851 (40.8) 188.4 151.7 to 225.1 300.8 210.7 to 390.9
 ≥30.0 kg/m2 3253 (19.4) 225.4 160.6 to 290.1 234.9 133.5 to 336.3
Education
 No high-school degree 5691 (33.9) 247.6 203.2 to 291.9 254.4 170.5 to 338.2
 High-school degree 11090 (66.1) 172.1 137.7 to 206.5 299.6 234.0 to 365.3
Region of residence
 Northeast 2958 (17.6) 265.3 193.1 to 337.4 366.5 194.9 to 538.1
 Midwest 4205 (25.1) 226.6 155.5 to 297.8 307.0 191.5 to 422.5
 South 6823 (40.7) 176.5 135.4 to 217.7 257.5 185.6 to 329.5
 West 2795 (16.7) 136.1 85.4 to 186.7 218.8 115.6 to 322.0
Overall 16781 197.1 168.0 to 226.1 282.9 226.3 to 339.5

aNumber of individuals with CDI/100,000 person-years.

bAge range 36 to 103 years.

Rogers et al.

Rogers et al. BMC Medicine 2013 11:121   doi:10.1186/1741-7015-11-121

Open Data