Table 4.
Complete cost collection vs. incomplete cost collection and extrapolation (by the respective quarter), n=234
| |
Complete cost collection |
Incomplete cost collection |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |
|
Extrapolation |
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| |
|
Omitted quarters |
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| |
Alt 0a |
Alt 1b |
Alt 2c |
Alt 3d |
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| |
|
|
Quarter 2 (by 3) |
Quarter 3 (by 4) |
Quarter 2 and 3 (by 4) |
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| Cost category | mean | (SD) | mean | (SD) | mean difference | (StdErr) | mean | (SD) | mean difference | (StdErr) | mean | (SD) | mean difference | (StdErr) |
| Direct healthcare costs | ||||||||||||||
| Physicians |
523.38 |
(358.27) |
517.57 |
(365.32) |
5.81 |
(9.51) |
525.99 |
(370.53) |
2.62 |
(6.67) |
522.75 |
(377.53) |
0.63 |
(11.91) |
| Physiotherapist |
69.29 |
(162.63) |
66.69 |
(166.77) |
2.61 |
(3.78) |
71.38 |
(178.98) |
2.09 |
(3.33) |
70.91 |
(202.65) |
1.62 |
(6.73) |
| Ambulatory clinic in hospital |
35.79 |
(110.83) |
42.89 |
(181.93) |
7.10 |
(6.00) |
28.60 |
(83.44) |
7.19 |
(5.30) |
28.41 |
(99.47) |
7.38 |
(6.20) |
| Drugs |
1315.52 |
(707.38) |
1312.68 |
(721.69) |
2.84 |
(7.97) |
1291.31 |
(709.17) |
**24.21 |
(7.54) |
1264.26 |
(739.52) |
**51.26 |
(16.33) |
| Sum of direct healthcare costs |
1943.99 |
(936.67) |
1939.82 |
(946.22) |
4.18 |
(14.01) |
1917.28 |
(962.29) |
**26.71 |
(12.04) |
1886.32 |
(997.06) |
**57.67 |
(22.20) |
| Direct non-healthcare costs | ||||||||||||||
| Outpatient nursing service |
145.44 |
(593.85) |
140.63 |
(569.41) |
4.81 |
(10.17) |
135.29 |
(573.69) |
10.15 |
(9.10) |
120.36 |
(549.63) |
25.08 |
(19.36) |
| Paid household help |
418.46 |
(2455.42) |
416.48 |
(2433.88) |
1.97 |
(20.61) |
411.48 |
(2489.45) |
6.97 |
(23.66) |
402.53 |
(2527.39) |
15.93 |
(45.70) |
| Sum of direct non-healthcare costs |
563.89 |
(2568.91) |
557.11 |
(2534.07) |
6.78 |
(22.98) |
546.77 |
(2589.39) |
17.12 |
(24.27) |
522.89 |
(2598.16) |
41.00 |
(46.89) |
| Sum of costs | 2507.88 | (2864.38) | 2496.93 | (2827.43) | 10.96 | (28.11) | 2464.05 | (2882.21) | 43.83 | (27.12) | 2409.21 | (2893.05) | *98.67 | (54.67) |
*p-value of paired t-test/bootstrapping of differences between complete and incomplete cost collection <0.10.
**p-value of paired t-test/bootstrapping of differences between complete and incomplete cost collection <0.05.
aAlternative 0, complete cost collection.
bAlternative 1, incomplete cost collection, omitted quarter 2, replaced by quarter 3.
cAlternative 2, incomplete cost collection, omitted quarter 3, replaced by quarter 4.
dAlternative 3, incomplete cost collection, omitted quarters 2 and 3, replaced by quarter 4.