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Table 3 Dizziness results compared between the subjects in the intervention and control groups answering the dizziness questions both at baseline and after one year

From: Dizziness in older persons at high risk of future hospitalization: prevalence, differences between those with and without dizziness, and effect of a proactive primary care intervention

Dizziness present or not (n = 447) Intervention group (n = 238) Control group (n = 209) P-value
Baseline, n (%) Yes 142 (60) 130 (62) .301a
No 96 (40) 79 (38)
One-year follow-up, n (%) Yes 138 (58) 128 (61) .491 a
No 100 (42) 81 (39)
Improved (yes to no), unchanged, or impaired (no to yes), n (%) Improved 26 (11) 18 (9) .565 a
Unchanged 190 (80) 175 (84)
Impaired 22 (9) 16 (8)
DHI-S (n = 272) (only subjects with dizziness at baseline included) Intervention group (n = 142) Control group (n = 130) p-value
Baseline, median (IQR) 18 (15) 18 (16) .796 b
One-year follow-up, median (IQR) 16 (20) 18 (16) .165 b
Change score, median (IQR) -2 (10) 0 (10) .052 b
  1. aChi-squared test
  2. bMann Whitney U-test
  3. DHI-S Dizziness Handicap Inventory – Screening version; IQR interquartile range