Table 3.
Fall outcomes in the PD subtypes.
| Non-PIGD | PIGD | Subtype Comparison | ||
|---|---|---|---|---|
| (n = 46) | (n = 67) | |||
| n (%) | n (%) | IRR (95% confidence interval) | ||
| Fallers | ≥1 fall | 9 (20) | 37 (55) | 3.04 (1.46–6.34) |
| ≥1 FOG-related fall | 2 (4) | 23 (34) | 6.76 (1.58–28.91) | |
| ≥1 balance-related fall | 7 (15) | 26 (39) | 2.50 (1.07–5.86) | |
| ≥1 syncopal and other fall | 1 (2) | 7 (10) | 5.03 (0.60–42.21) | |
| ≥1 at home falls # | 5 (11) | 30 (45) | 4.10 (1.41–11.91) | |
| ≥1 away from home falls # | 4 (9) | 10 (15) | 3.25 (1.08–9.76) | |
| GM ‡ | GM ‡ | IRR (95% confidence interval) | ||
| Falls | All fall types | 0.83 | 3.48 | 10.21 (3.22–32.44) |
| FOG related falls | 0.54 | 1.62 | 156.30 (23.89–1022.45) | |
| Balance related falls | 0.74 | 1.30 | 4.72 (1.33–16.70) | |
| Syncopal and other falls | 0.55 | 0.67 | 1.58 (0.14–17.41) | |
| At home falls # | 0.66 | 1.76 | 9.94 (2.50–39.61) | |
| Away from home falls # | 0.62 | 0.86 | 1.32 (0.98–17.87) |
FOG—Freezing of gait; IRR: Incidence Rate Ratio. # Fall location data from 1014 falls. ‡ Geometric mean of individual fall rates with 0.5 added to all numerators to enable the inclusion of participants with zero falls during the follow-up period in the comparisons.