Table 1 The characteristics of the study sample (means / %) with and without a nursing home admission and the results of t-tests of significance difference between the means of continuous values or categorical variables
From: Development and validation of classifiers and variable subsets for predicting nursing home admission
| Variable | Time interval / description | NH admission | No NH admission | p-value |
|---|---|---|---|---|
| Age (mean) | 84.44 | 81.76 | <.0001 | |
| Number of Emergency care visits (mean) | 3-6 months | 0.72 | 0.35 | <.0001 |
| 6-9 months | 0.78 | 0.38 | <.0001 | |
| 9-12 months | 0.61 | 0.37 | <.0001 | |
| Number of emergency care visits, change (mean) | 3-6 months vs. 6-9 months | -0.06 | -0.03 | .6279 |
| 6-9 months vs. 9-12 months | 0.18 | 0.01 | .0049 | |
| Number of periods of care (mean) | 3-6 months | 0.98 | 0.36 | <.0001 |
| 6-9 months | 0.86 | 0.32 | <.0001 | |
| 9-12 months | 0.53 | 0.33 | .0002 | |
| Number of periods of care, change (mean) | 3-6 months vs. 6-9 months | 0.12 | 0.03 | .3121 |
| 6-9 months vs. 9-12 months | 0.33 | -0.01 | <.0001 | |
| Number of home care visits (mean) | 3-6 months | 131.51 | 96.30 | <.0001 |
| 6-9 months | 142.80 | 93.42 | <.0001 | |
| 9-12 months | 130.10 | 89.26 | <.0001 | |
| Number of home care visits, change (mean) | 3-6 months vs. 6-9 months | -11.28 | 2.88 | .0002 |
| 6-9 months vs. 9-12 months | 12.70 | 4.16 | .0118 | |
| Number of outpatient visits in | 3-6 months | 1.89 | 1.11 | <.0001 |
| specialised care by appointment (mean) | 6-9 months | 1.77 | 1.14 | <.0001 |
| 9-12 months | 1.58 | 1.16 | .0001 | |
| Number of outpatient visits in specialised | 3-6 months vs. 6-9 months | 0.12 | -0.03 | .1410 |
| care by appointment, change (mean) | 6-9 months vs. 9-12 months | 0.19 | -0.02 | .0588 |
| Number of physiotherapy visits at home (mean) | 3-12 months | 0.47 | 0.49 | .9006 |
| Number of outpatient visits in geriatrics (mean) | 3-12 months | 1.56 | .62 | <.0001 |
| Number of physician visits at home (mean) | 3-12 months | 0.57 | 0.49 | .1316 |
| RAI-HC (mean)a | CPS | 1.50 | 0.92 | <.0001 |
| IADL | 13.18 | 9.34 | <.0001 | |
| PAIN | 0.72 | 0.77 | .2278 | |
| MAPLE | 4.06 | 3.14 | <.0001 | |
| Customer of support service (%) | Safety phone | 41% | 25% | <.0001 |
| meals-on-wheels | 47% | 28% | <.0001 | |
| shopping | 38% | 27% | <.0001 | |
| Cleaning | 10% | 10% | .9058 | |
| transportation | 29% | 15% | <.0001 | |
| Day center | 30% | 15% | <.0001 | |
| Support for informal care | 5% | 5% | .9691 | |
| Home rehabilitation | 4% | 3% | .3683 | |
| Outpatient visit in specialised care (%) | Surgery / neurosurgery | 29% | 13% | <.0001 |
| Internal medicine | 40% | 22% | <.0001 | |
| Obstetric | 3% | 2% | .0367 | |
| Neurology | 17% | 9% | <.0001 | |
| Respiratory medicine | 4% | 4% | .8502 | |
| Ophthalmology | 12% | 7% | .0004 | |
| Phoniatrics | 14% | 5% | <.0001 | |
| Psychiatry | 14% | 9% | .0004 | |
| Period of care in specialised care (%) | Surgery / neurosurgery | 20% | 8% | <.0001 |
| Internal medicine | 30% | 16% | <.0001 | |
| Obstetric | 0% | 0% | .5341 | |
| Neurology | 10% | 3% | <.0001 | |
| Respiratory medicine | 2% | 2% | .5684 | |
| Ophthalmology | 1% | 0% | .0028 | |
| Phoniatrics | 1% | 0% | .1042 | |
| Psychiatry | 8% | 2% | <.0001 | |
| Intensive care unit | 1% | 0% | .0211 | |
| Diagnosis (%) | a00-a09 | 4% | 2% | <.0001 |
| a30-a49 | 4% | 3% | .1679 | |
| e00-e07 | 3% | 2% | 0.0723 | |
| e10-e14 | 9% | 6% | .0037 | |
| e70-e90 | 5% | 2% | <.0001 | |
| f00-f03 | 50% | 16% | <.0001 | |
| f04-f09 | 4% | 2% | .0006 | |
| f10-f19 | 2% | 1% | .3515 | |
| f20-f29 | 2% | 2% | .7376 | |
| f30-f39 | 6% | 4% | .0123 | |
| g20-g26 | 5% | 2% | .0001 | |
| g30-g32 | 32% | 6% | <.0001 | |
| g40-g47 | 3% | 2% | .0972 | |
| i10-i15 | 28% | 12% | <.0001 | |
| i20-i25 | 14% | 6% | <.0001 | |
| i30-i52 | 25% | 13% | <.0001 | |
| i60-i69 | 9% | 4% | <.0001 | |
| i70-i79 | 3% | 1% | .0023 | |
| i80-i89 | 2% | 1% | .1083 | |
| i95-i99 | 5% | 1% | <.0001 | |
| j09-j18 | 6% | 3% | .0136 | |
| j20-j22 | 3% | 2% | .0437 | |
| j40-j47 | 5% | 3% | .1991 | |
| k55-k63 | 5% | 2% | <.0001 | |
| m05-m14 | 2% | 2% | .7376 | |
| m15-m19 | 5% | 2% | .0005 | |
| m45-m49 | 2% | 1% | .0008 | |
| m50-m54 | 4% | 2% | .0933 | |
| m70-m79 | 3% | 2% | .0978 | |
| m80-m85 | 4% | 2% | .0008 | |
| n10-n16 | 4% | 2% | .0324 | |
| n17-n19 | 5% | 2% | .0001 | |
| n30-n39 | 15% | 5% | <.0001 | |
| n40-n51 | 2% | 1% | .0813 | |
| r00-r09 | 2% | 2% | .9037 | |
| r10-r19 | 4% | 2% | .0034 | |
| r40-r46 | 5% | 2% | .0012 | |
| r50-r69 | 10% | 4% | <.0001 | |
| s00-s09 | 8% | 2% | <.0001 | |
| s30-s39 | 2% | 1% | .0115 | |
| s40-s49 | 2% | 1% | .3970 | |
| s70-s79 | 5% | 2% | <.0001 | |
| s80-s89 | 2% | 1% | .1098 | |
| z00-z13 | 5% | 3% | .1123 |