Table 4. Validation of the simulation models (comparison of simulation output with the results of the time and motion study).

	Time and motion study results (minutes)		Simulation results (minutes)
	Average	Std Dev	Average	Lower 95%	Upper 95%
1. Pre-integration ART	93	49	86	76	96
2. Pre-integration OPD	84	47	85	80	90
3. Post-integration ART	127	51	128	118	139
4. Post-integration OPD	111	46	117	108	126
5. Post-integration Overall	113	48	121	112	131