From: Sleep-related breathing disorders and gait variability: a cross-sectional preliminary study
Apnea-hypopnea index* | P-Value | ||||||
---|---|---|---|---|---|---|---|
< 15 (n = 23) | 15-30 (n = 19) | >30 (n = 7) | Overall† | <15 versus 15-30‡ | <15 versus >30‡ | 15-30 versus >30‡ | |
Age, mean ± SD (years) | 69.6 ± 0.8 | 69.8 ± 0.7 | 70.6 ± 1.4 | 0.174 | - | - | - |
Female, n (%) | 15 (65.2) | 8 (42.1) | 4 (57.1) | 0.284 | - | - | - |
Body mass index (kg/m2), | |||||||
Mean ± SD | 24.1 ± 2.5 | 26.6 ± 3.2 | 28.4 ± 2.44 | 0.003 | 0.020 | 0.002 | 0.231 |
>25, n (%) | 10 (43.5) | 13 (68.4) | 7 (100.0) | 0.021 | 0.314 | 0.013 | 0.314 |
Number of drugs taken daily, mean ± SD | 1.9 ± 1.8 | 2.2 ± 1.52.3 | 2.3 ± 1.1 | 0.710 | - | - | - |
Vision¶ (/10), mean ± SD | 8.3 ± 2.5 | 8.3 ± 3.3 | 8.0 ± 2.0 | 0.634 | - | - | - |
Lower-limb proprioception# (/8), mean ± SD | 5.0 ± 1.7 | 4.7 ± 1.3 | 4.0 ± 1.4 | 0.219 | - | - | - |
Lower-limb osteoarthritis, n (%) | 1 (4.3) | 2 (10.5) | 1 (14.3) | 0.701 | - | - | - |
History of falls in the past year, n (%) | 7 (30.4) | 5 (26.3) | 1 (14.3) | 0.703 | - | - | - |
Depression** (/13), mean ± SD | 1.8 ± 2.1 | 0.9 ± 1.1 | 2.0 ± 1.8 | 0.361 | - | - | - |
Mini mental status examination ††score (/30), mean ± SD | 29.1 ± 1.1 | 29.3 ± 0.7 | 28.9 ± 0.9 | 0.509 | - | - | - |
Total delayed recall and free delayed recall ‡‡ score (/48), mean ± SD | 47.0 ± 2.0 | 47.6 ± 0.7 | 47.1 ± 1.5 | 0.616 | - | - | - |
Digit span score¶¶, mean ± SD | 10.5 ± 1.9 | 10.6 ± 1.9 | 9.1 ± 0.9 | 0.106 | - | - | - |
Coefficient of variation of stride time (%), mean ± SD | 1.5 ± 0.5 | 2.2 ± 0.9 | 2.3 ± 0.5 | 0.010 | 0.031 | 0.004 | 0.395 |