Table 5 CSA instrument output derived when exposed to "gold standard" accelerations in the mechanical setup. Data are means and standard deviations with 95% CI, and coefficients of variation
November 2003 | N | Measured acceleration (Counts*min-1) | SD | CV (%) |
|---|---|---|---|---|
Setting #1 (1.61 m*s-2) | 50 | 2952 (2883–3021) | 243 (203–303) | 8.2 |
Setting #2 (2.22 m*s-2) | 50 | 4861 (4757–4965) | 366 (306–456) | 7.5 |
Setting #3 (1.16 m*s-2) | 50 | 2952 (2887–3017) | 229 (191–285) | 7.8 |
Setting #4 (3.63 m*s-2) | 50 | 7831 (7672–7990) | 560 (468–698) | 7.2 |
January 2004 | ||||
Setting #1 (1.61 m*s-2) | 53 | 2970 (2900–3040) | 253 (212–312) | 8.5 |
Setting #2 (2.22 m*s-2) | 53 | 4883 (4775–4992) | 393 (330–486) | 8.0 |
Setting #3 (1.16 m*s-2) | 53 | 2981 (2916–3045) | 234 (197–290) | 7.8 |
Setting #4 (3.63 m*s-2) | 53 | 7857 (7689–8026) | 611 (512–756) | 7.8 |
March 2004 | ||||
Setting #1 (1.61 m*s-2) | 53 | 3021 (2945–3097) | 275 (231–341) | 9.1 |
Setting #2 (2.22 m*s-2) | 53 | 4966 (4852–5080) | 414 (347–512) | 8.3 |
Setting #3 (1.16 m*s-2) | 53 | 3014 (2944–3084) | 253 (212–313) | 8.4 |
Setting #4 (3.63 m*s-2) | 53 | 7967 (7796–8138) | 620 (521–768) | 7.8 |