Table 5.
One year physician, hospitalization, day procedure and total costsa according to BMI categories and cost differences (reference: normal-weight) (mean and 95% confidence intervals)b
| Normal-weight | Underweight | Overweight | Obese | |
|---|---|---|---|---|
| Hospitalisation costs | $166.3 ($144.3, $190.3) | $206.1 ($150.3, $270.6) | $165.2 ($140.0, $190.5) | $233.3 ($192.7, $276.3) |
| Cost difference | Reference group | $39.8 (−$22.5, $110.6) | −$1.1 (−$35.3, $29.0) | $67.0 ($23.5, $114.2) |
| Day procedure costs | $57.6 ($49.9, $66.7) | $54.2 ($39.7, $69.1) | $60.1 ($53.6, $67.0) | $67.3 ($58.1, $76.8) |
| Cost difference | Reference group | −$3.4 (−$18.8, $13.0) | $2.5 (−$8.6, $12.9) | $9.7 (−$0.9, $20.7) |
| Physician costs | $476.8 ($457.6, $498.4) | $487.8 ($447.1, $530.3) | $463.4 ($441.8, $487.3) | $584.9 ($544.3, $630.8) |
| Cost difference | Reference group | $11.0 (−$34.3, $56.0) | −$13.4 (−$43.3, $14.1) | $108.1 ($63.9, $155.4) |
| Total costsa | $708.0 ($668.2, $752.4) | $746.0 ($652.0, $834.6) | $690.3 ($648.2, $736.4) | $884.1 ($806.1, $953.8) |
| Cost difference | Reference group | $38.0 (−$57.7, $138.9) | −$17.7 (−$74.2, $38.4) | $176.1 ($88.3, $252.8) |
| Total costs: male | $600.1 ($543.3, $659.8) | $691.3 ($521.6, $911.5) | $540.3 ($497.3, $581.5) | $671.2 ($585.3, $765.5) |
| Cost difference | Reference group | $91.2 (−$97.4, $312.6) | −$59.8 (−$133.4, $14.1) | $71.1 (−$36.1, $178.3) |
| Total costs: female | $812.9 ($755.2, $863.3) | $821.4 ($710.1, $944.6) | $849.4 ($781.6, $932.4) | $1121.9 ($1013.4, $1243.5) |
| Cost difference | Reference group | $8.5 (−$105.1, $140.2) | $36.5 (−$45.0, $128.3) | $309.0 ($185.3, $441.4) |
| Total costs: Young adults (18–39) | $424.3 ($389.2, $460.0) | $404.1 ($338.8, $480.5) | $436.4 ($394.3, $483.4) | $506.3 ($435.1, $586.6) |
| Cost difference | Reference group | −$20.2 (−$87.6, $61.6) | $12.1 (−$50.9, $71.4) | $82.0 ($2.0, $176.1) |
| Total costs: Middle-age adults (40–59) | $673.4 ($613.9, $745.7) | $810.4 ($599.6, $1040.0) | $618.7 ($556.7, $685.5) | $918.3 ($809.3, $1051.2) |
| Cost difference | Reference group | $137.0 (−$79.1, $382.0) | −$54.7 (−$137.7, $33.6) | $244.9 ($108.9, $393.1) |
| Total costs: Older adults (60 and +) | $1230.5 ($1123.1, $1348.7) | $1201.9 ($975.8, $1462.3) | $1282.9 ($1162.9, $1399.0) | $1476.1 ($1296.9, $1665.7) |
| Cost difference | Reference group | −$28.6 (−$268.4, $220.1) | $52.4 (−$95.1, $177.1) | $245.6 ($59.1, $442.3) |
a
Notes: Total cost = hospitalization costs + day procedure costs + physician costs;
b
adjusted for personal income, smoking status, physical activity status, age and gender; all values are Canadian dollars; bold indicates statistical significance (ie, P < 0.05) compared to normal weight.