Table 2.
Average annual incidence rates from CDC WONDER and HRS–NDI (1999–2011)
| Any Falla | Same-Level Fallb | |||
|---|---|---|---|---|
| WONDERc | HRS–NDId | WONDERc | HRS–NDId | |
| n = 186,029 | n = 341,898e | n = 178,909 | n = 252,270e | |
| Total | 42.00 | 51.60 | 40.39 | 49.33 |
| 95% CI | (41.80, 42.19) | (42.02, 63.37) | (40.20, 40.57) | (39.98, 60.87) |
| Gender | ||||
| Female | 39.19 | 45.15 | 38.59 | 44.16 |
| 95% CI | (38.95, 39.44) | (33.82, 60.27) | (38.34, 38.83) | (32.97, 59.15) |
| Male | 45.85 | 60.43 | 42.87 | 56.40 |
| 95% CI | (45.54, 46.16) | (45.12, 80.94) | (42.57, 43.16) | (41.68, 76.32) |
| Race | ||||
| White | 45.02 | 56.95 | 43.31 | 54.89 |
| 95% CI | (44.81, 45.23) | (45.92, 70.61) | (43.10, 43.51) | (44.09, 68.33) |
| Black | 17.70 | 24.43 | 16.98 | 24.43 |
| 95% CI | (17.27, 18.12) | (10.98, 54.38) | (16.57, 17.40) | (10.98, 54.38) |
| Other | 25.95 | 33.24 | 24.87 | 16.62 |
| 95% CI | (25.17, 26.74) | (8.31, 132.91) | (24.10, 25.64) | (2.34, 117.99) |
| Age | ||||
| 65–74 | 11.77 | 30.31 | 10.61 | 26.75 |
| 95% CI | (11.63, 11.91) | (18.85, 48.76) | (10.48, 10.74) | (16.13, 44.37) |
| 75–84 | 44.04 | 45.91 | 42.22 | 44.60 |
| 95% CI | (43.71, 44.37) | (32.96, 63.94) | (41.90, 42.54) | (31.87, 62.41) |
| ≥85 | 160.00 | 88.57 | 157.14 | 86.29 |
| 95% CI | (158.96, 161.04) | (64.70, 121.20) | (156.11, 158.18) | (62.78, 118.58) |
Notes: CDC = Centers for Disease Control and Prevention; CI = confidence interval; HRS = Health and Retirement Study; NDI = National Death Index; WONDER = Wide-ranging ON-line Data for Epidemiologic Research.
aAny fall-related cause of death (ICD-10 codes: W00–W19). bFall occurring on same level (ICD-10 codes: W00–W10, W18, and W19). cAverage annual death rate: deaths/100,000 person (assumes complete follow-up). dAnnual incidence density: fall deaths/100,000 person-years. eWeighted estimated frequency accounting for HRS complex sampling and sampling probability.