Table 2:
Stroke Incidence Rates per 100,000 over Time by Sex in the Greater Cincinnati Northern Kentucky Stroke Study
| 1993/94 | 1999 | 2005 | 2010 | 2015 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Type of stroke | Females | Males | Females | Males | Females | Males | Females | Males | Females | Males |
| All | 229* (215, 242) [n=1105] | 282* (263, 301) [n=813] | 265 (251, 279) [n=1171] | 303 (283, 323) [n=834] | 220 (207, 232) [n=1055] | 245 (229, 261) [n=826] | 210 (198, 222) [n=1099] | 205 (191, 219) [n=838] | 174 (163, 185) [n=1047] | 211 (198, 225) [n=945] |
| Female/male rate ratio | 0.81 (0.74, 0.88) | 0.87 (0.80, 0.95) | 0.89 (0.82, 0.97) | 1.03 (0.93, 1.12) | 0.84 (0.93, 1.12) | |||||
| Ischemic Stroke | 202* (189, 214) [n=972] | 254* (236, 272) [n=719] | 218 (206, 231) [n=1003] | 270 (251, 288) [n=746] | 178 (167, 189) [n=924] | 220 (205, 235) [n=725] | 183 (175, 197) [n=943] | 178 (165, 191) [n=719] | 151 141, 161) [n=910] | 182 (170, 195) [n=822] |
| Female/Male rate ratio | 0.79 (0.72, 0.87) | 0.81 (0.74, 0.88) | 0.81 (0.73, 0.89) | 1.03 (0.93, 1.13) | 0.83 (0.75, 0.91)) | |||||
| Intracranial hemorrhage | 27 (23, 32) [n=140] | 33 (27, 40) [n=110] | 35 (30, 40) [n=167] | 37 (30, 43) [n=131] | 31 (26, 36) [n=171] | 38 (32, 44) [n=145] | 28 (23, 32) [n=158] | 34 (28, 39) [n=143] | 30 (25, 34) [n=183] | 32 (27, 38) [n=149] |
| Female/Male risk ratio | 0.82 (0.61, 1.03) | 0.96 (0.74, 1.18) | 0.81 (0.63, 0.99) | 0.81 (0.63, 1.00) | 0.91 (0.71, 1.12) | |||||
| Subarachnoid hemorrhage | 12 (9, 15) [n=58] | 8 (5, 12) [n=27] | 14 (11, 18) [n=71] | 6 (4, 8) [n=24] | 13 (10, 16) [n=67] | 6 (3, 8) [n=24] | 11 (8, 14) [n=59] | 5 (3, 8) [n=25] | 8 (6, 11) [n=48] | 11 (8, 14) [n=40] |
| Female/Male risk ratio | 1.44 (0.74, 2.13 ) | 2.39 (1.26, 3.52) | 2.15 (1.13, 3.17) | 2.00 (1.05, 2.95) | 0.79 (0.47. 1.10) | |||||
Incidence rates (95% CI) are per 100,000 and adjusted by age and race using standardization to the 2010 United States population. The unweighted number of strokes are shown in square brackets as [n=].
Adjusted p-value< 0.05 for comparison between 1993/94 and 2015 using Bonferroni correction
Note: Incidence rates and the unweighted numbers shown are type specific, and “All” includes any type of stroke; Ischemic, ICH, SAH or Unknown. The rate for “All Strokes” was estimated using only those stroke patients with no prior stroke of any type, whereas rates by stroke subtype are estimated using only individuals who have not had a previous stroke of that specific stroke subtype.