Using information technology to optimize the identification process for outpatients having blood drawn and improve patient satisfaction

Table 2 Comparison of waiting time for blood drawing between the two groups

Group	Total cases (n)	0–30 min (n/%)	31–60 min (n/%)	> 60 min (n/%)	Average waiting time (\(\overline{x}\) ± SD) min
Pre optimization group	959	575/59.96	353/36.81	31/3.23	27.36 ± 11.69
Post optimization group	1011	908/89.81	101/10.00	2/0.19	18.95 ± 7.28
χ²/t	–	χ² = 22.315	χ² = 15.635	χ² = 18.029	t = 8.046
P	–	< 0.001	< 0.001	< 0.001	< 0.001

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