Table 2. Predictors of total charges for hospitalizations among patients with gastrointestinal stromal tumors (GISTs).
| Characteristic | β | 95% confidence interval | P value |
|---|---|---|---|
| Age in years |
|||
| Less than 35 |
6,255.02 |
[–3,265.32, 15,775.36] |
0.19 |
| 35-49 |
4,691.75 |
[–4,124.17, 13,507.66] |
0.29 |
| 50-64 |
4,019.12 |
[–4,936.38, 12,974.63] |
0.38 |
| 65-79 |
–1,300.08 |
[–9,062.44, 6,462.28] |
0.74 |
| >79 |
Ref |
||
| Gender |
|||
| Male |
–1,678 |
[–2,667.78, 6,023.81] |
0.45 |
| Female |
Ref |
||
| Median household income |
|||
| $0–$38,999 |
–7,300.45 |
[–15,329.86, 728.97] |
0.078 |
| $39,000–$47,999 |
–9,089.22 |
[–15,292.54, –2,885.90] |
0.005* |
| $48,000–$62,999 |
–5,554.50 |
[–12,440.79, 1,331.80] |
0.12 |
| ≥$63,000 |
Ref |
||
| Primary payer |
|||
| Public |
6,959.59 |
[–3,923.94, 17,843.11] |
0.21 |
| Private |
7,098.23 |
[–3,663.66, 17,860.12] |
0.19 |
| Othera |
Ref |
||
| Hospital size |
|||
| Small |
–1,852.23 |
[–13,693.36, 9,988.89] |
0.76 |
| Medium |
–5,754.61 |
[–12,820.31, 1,311.10] |
0.11 |
| Large |
Ref |
||
| Location of hospital |
|||
| Rural |
–13,443.01 |
[–19,472.47, –7,413.56] |
<0.0001* |
| Urban |
Ref |
||
| Region of hospital |
|||
| Midwest |
–22,305.75 |
[–34,704.19, –9,907.31] |
0.0004* |
| Northeast |
–22,939.50 |
[–32,958.24, –12,920.77] |
<0.0001* |
| West |
–22,577.24 |
[–32,563.63, –12,590] |
<0.0001* |
| South |
Ref |
||
| Teaching status of hospital |
|||
| Non-teaching |
–5,204.65 |
[–11,657.30, 1,248.00] |
0.11 |
| Teaching |
Ref |
||
| Discharge disposition |
|||
| Routine |
–1,967.60 |
[–8,583.06, 4,647.85] |
0.56 |
| Died |
6,929.45 |
[–11,723.39, 25,582.30] |
0.47 |
| Otherb |
Ref |
||
| Length of stay |
6,069.69 |
[4,488.70, 7,650.69] |
<0.0001** |
| Number of diagnoses on this record | 1,008.35 | [99.2, 1,917.50] | 0.03* |
*Significant at α level of 0.05; aOther category included self-pay and other type of insurances; bOther category included transfer to short-term hospital, other transfers, including skilled nursing facility, intermediate care, and another type of facility, home health care, against medical advice and discharged to an unknown destination; β = Standardized regression coefficient