Table 3. Analyses by ethnicity and sex within the base-case model for the home safety assessment and modification (HSAM) intervention in the Counties Manukau District Health Board (95%UI).
| Population group | Baseline (no HSAM)* | HSAM compared to baseline (incremental)* | |||||
|---|---|---|---|---|---|---|---|
| Net cost ($; 1000s) | QALYs expected | QALYs expected per capita | Net cost ($; 1000s) | QALYs gained | QALYs gained per capita | ICER | |
| Total population | $3,040,000 ($3,010,000 –$3,110,000) |
331,000 (321,000–342,000) |
7.94 (7.69–8.20) |
$8440 ($663 –$14,300) |
2800 (547–5280) |
0.066 (0.013–0.126) |
$5480 (cost saving–$15,300) |
| Māori (Indigenous population) | $173,000 ($172,500 –$175,000) |
17,100 (16,500–17,700) |
6.61 (6.36–6.84) |
$900 ($512 –$1310) |
158 (29–307) |
0.061 (0.011–0.118) |
$8360 ($2370 –$21,000) |
| Māori: equity analysis** | $196,000 ($195,000 –$198,000) |
22,700 (21,800–23,700) |
8.75 (8.39–9.11) |
$1140 ($618 –$1700) |
240 (45–458) |
0.092 (0.017–0.176) |
$6540 ($2490 –$14,700) |
| Non-Māori | $2,870,000 ($2,840,000 –$2,930,000) |
314,000 (304,000–325,000) |
8.031 (7.78–8.29) |
$7540 (cost saving–$13,100) |
2640 (514–4970) |
0.067 (0.013–0.126) |
$5310 (cost saving–$15,100) |
| Men | $1,460,000 ($1,450,000 –$1,500,000) |
147,000 (142,000–153,000) |
7.65 (7.38–7.92) |
$4020 (cost saving–$7030) |
1330 (256–2560) |
0.068 (0.013–0.132) |
$5460 (cost saving–$16,900) |
| Men: equity analysis*** | $1,600,000 ($1,580,000 –$1,640,000) |
163,000 (157,000–169,000) |
8.45 (8.13–8.78) |
$4770 ($726 –$7970) |
1580 (306–3010) |
0.082 (0.015–0.155) |
$5070 ($159 –$14,500) |
| Women | $1,580,000 ($1,570,000 –$1,610,000) |
184,000 (179,000–190,000) |
8.20 (7.96–8.44) |
$4420 ($654 –$7330) |
1470 (291–2760) |
0.065 (0.012–0.122) |
$5520 ($165 –$14,900) |
Notes
* Results are rounded to three meaningful digits.
**As Māori have higher background mortality rates and higher morbidity, this essentially ‘penalises’ health gain for Māori in the standard analyses. So we present an equity analysis [21] with non-Māori morbidity and mortality rates applied to Māori (i.e., expanding the envelope of potential health gain for those benefiting from the HSAM intervention).
*** As men have higher background mortality rates, this essentially ‘penalises’ health gain for men in the analyses. So we present an equity analysis with women’s morbidity and mortality rates applied to men.
ICER: incremental cost-effectiveness ratio; QALY: quality-adjusted life-year; 95%UI: 95% uncertainty interval.