Table 2.
Univariable and multivariable analysis of demographic and environmental risk factors associated with the severity level of fall.
| Variables | Univariable analysis | Multivariable analysis | ||||
|---|---|---|---|---|---|---|
| Est. (SE) | Odds (95% CI) | p-value | Est. (SE) | Adj. Odds (95% CI) | p-value | |
| Intercept | − 1.889 (0.078) | 0.151 (0.130–0.176) | < 0.001* | |||
| Age | ||||||
| < 50 | 0 | 1 | – | 0 | 1 | – |
| 50–64 | − 0.065 (0.065) | 0.937 (0.824, 1.065) | 0.320 | − 0.051 (0.068) | 0.951 (0.832, 1.086) | 0.457 |
| 65–74 | 0.149 (0.066) | 1.161 (1.020, 1.321) | 0.023* | 0.178 (0.069) | 1.195 (1.044, 1.367) | 0.010* |
| 75–84 | 0.250 (0.065) | 1.284 (1.131, 1.459) | < 0.001* | 0.257 (0.068) | 1.293 (1.133, 1.477) | < 0.001* |
| > 84 | 0.328 (0.068) | 1.389 (1.231, 1.601) | < 0.001* | 0.330 (0.071) | 1.391 (1.210, 1.599) | < 0.001* |
| Gender | ||||||
| Male | 0 | 1 | – | 0 | 1 | – |
| Female | 0.154 (0.039) | 1.166 (1.080, 1.260) | < 0.001* | 0.141 (0.041) | 1.151 (1.063, 1.247) | 0.001* |
| Activity at fall | ||||||
| Attempting to sit/stand/bending and reaching over | 0 | 1 | – | 0 | 1 | – |
| Getting in/out of bed | 0.040 (0.057) | 1.041 (0.932, 1.163) | 0.476 | 0.068 (0.059) | 1.070 (0.953, 1.201) | 0.251 |
| Toileting and showering | 0.162 (0.522) | 1.175 (1.061, 1.303) | 0.002* | 0.136 (0.058) | 1.145 (1.022, 1.284) | 0.020* |
| Walking and running | 0.015 (0.056) | 1.015 (0.909, 1.134) | 0.787 | − 0.062 (0.061) | 0.940 (0.834, 1.060) | 0.311 |
| Unknown | 0.135 (0.074) | 1.144 (0.990, 1.322) | 0.067 | 0.160 (0.115) | 1.174 (0.938, 1.470) | 0.161 |
| Place of incident | ||||||
| Bathroom | 0 | 1 | – | 0 | 1 | – |
| Bed | − 0.148 (0.053) | 0.862 (0.777, 0.956) | 0.005* | − 0.112 (0.060) | 0.894 (0.794, 1.006) | 0.062 |
| Allied health treatment area | − 0.040 (0.052) | 0.960 (0.867, 1.064) | 0.441 | 0.002 (0.058) | 1.002 (0.895, 1.123) | 0.969 |
| Communal area | 0.144 (0.111) | 1.155 (0.929, 1.437) | 0.195 | 0.229 (0.115) | 1.257 (1.003, 1.576) | 0.047* |
| Height of fall | ||||||
| Low fall (< 0.5 m) | 0 | 1 | – | 0 | 1 | – |
| Medium fall (0.5–1.0 m) | 0.071 (0.043) | 1.074 (0.988, 1.168) | 0.094 | 0.084 (0.045) | 1.088 (0.996, 1.189) | 0.063 |
| High fall (> 1.0 m) | − 0.103 (0.220) | 0.902 (0.586, 1.390) | 0.641 | − 0.020 (0.221) | 0.980 (0.636, 1.151) | 0.928 |
| Unknown | 0.166 (0.077) | 1.181 (1.015, 1.374) | 0.031* | 0.128 (0.079) | 1.136 (0.973, 1.327) | 0.107 |
*Denotes significant association at 5% level of significance.