Table 4

Characteristics for invited patients (n=512), by response status
Survey respondents Survey non- respondents P value
N=102 N =410
n % n %
Age group (at survey) <0.001
65-79 68 66.7 177 43.2
≥80 34 33.3 233 56.8
Gender 0.056
Male 63 61.8 210 51.2
Female 39 38.2 200 48.8
Maximum Charlson 0.385
Comorbidity Index 0 28 27.5 88 21.5
1-2 55 53.9 230 56.1
≥3 19 18.6 92 22.4
Number of ACS 0.942
conditions (multi-morbidity) 1 18 17.6 67 16.3
2 34 33.3 143 34.9
3 30 29.4 132 32.2
4 17 16.7 58 14.1
5 3 2.9 10 2.4
≥5 medications 0.060
Yes 13 12.7 86 21.0
For Unplanned Admissions in index year
Frequent /very frequent 0.067
admissions 3 admissions 65 63.7 220 53.7
4+ admissions 37 36.3 190 46.3
Number of admissions 1 Mean(se) 4.1 (0.2) 4.6 (0.1) 0.032
Number of admissions2 Median (range) 3 (3–9) 3 (3–11) 0.078
Number of Unplanned Bed Days3 Mean (se) 5.2 (0.2) 6.2 (0.3) 0.014
Number of Unplanned Bed Days2 Median (range) 4 (1–25) 4 (1–48) 0.040

1 Results from Poisson regression model :estimated means, standard errors and p value.

2 Results of non-parametric Wilcoxon test of ranks : p values.

3 Results of GEE Gamma regression model: stimated means, standard errors and p value.

Longman et al.

Longman et al. BMC Health Services Research 2012 12:373   doi:10.1186/1472-6963-12-373

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