Table 3.
Incremental healthcare cost comparisons for trial participants who did versus did not sustain 12-month smoking abstinencea
| Quarter | Total costs | p-value | Inpatient Costs | p-value | Outpatient Costs | p-value |
|---|---|---|---|---|---|---|
| Prior to quit | ||||||
| 4 | −242 | (0.025) | −207 | (0.021) | −17 | (0.477) |
| 3 | −69 | (0.677) | −57 | (0.696) | 0 | (0.997) |
| 2 | −127 | (0.399) | −149 | (0.219) | 49 | (0.234) |
| 1 | −289 | (0.008) | −270 | (0.002) | 8 | (0.809) |
| Quit | −78 | (0.560) | −121 | (0.300) | 71 | (0.063) |
| Post-quit | ||||||
| 1 | −142 | (0.331) | −165 | (0.137) | 57 | (0.154) |
| 2 | 12 | (0.944) | −46 | (0.739) | 86 | (0.085) |
| 3 | −139 | (0.435) | −187 | (0.136) | 119 | (0.064) |
| 4 | −242 | (0.120) | −241 | (0.031) | 51 | (0.338) |
| 5 | −94 | (0.666) | −145 | (0.328) | 93 | (0.345) |
| 6 | −541 | (0.000) | −445 | (0.000) | −44 | (0.297) |
Note: Robust p-values in parentheses, bold indicates p-value <0.05. Model adjusted for individual age, gender, race/ethnicity, years smoked prior to quit, whether they smoked a pack or more a day, marital status, and education.
a
Relative to costs five quarters prior to quitting attempt