TABLE 7.

Cry Variables in Heavy, Some, and No Cocaine Exposure Groups

Measure	Cocaine Exposure
	Heavy		Some		None		P
	N	Mean ± SE	N	Mean ± SE	N	Mean ± SE	Unadjusted	Adjusted
Threshold	89	1.94 ± 0.02	166	1.97 ± 0.02	506	1.95 ± 0.01	.221	.131
Latency (sec)	89	2.48 ± 0.39	166	2.93 ± 0.29	508	2.76 ± 0.19	.837	.084
Utterances (n)	89	10.58 ± 0.76	166	12.30 ± 0.57	508	11.21 ± 0.36	.285	.511
Short utterances (n)	89	15.85 ± 1.16	166	16.18 ± 0.84	508	15.92 ± 0.53	.676	.361
Duration first utterance (sec)	89	2.31 ± 0.20	166	2.31 ± 0.15	508	2.25 ± 0.10	.833	.350
Duration second utterance (sec)*	86	1.56 ± 0.10	161	1.42 ± 0.08	488	1.47 ± 0.05	.426	.046
Inspiratory period (sec)	86	2.79 ± 0.36	161	2.87 ± 0.28	488	2.73 ± 0.18	.936	.089
Dysphonation (%)	89	14.60 ± 1.74	166	10.46 ± 1.32	508	11.86 ± 0.85	.050	.105
Mode changes (n)	89	2.49 ± 0.28	166	2.05 ± 0.21	508	2.46 ± 0.13	.086	.938
Energy (dB)	89	3733.97 ± 274.43	166	3745.75 ± 206.00	508	3673.04 ± 131.04	.679	.162
Fundamental frequency (Hz)	89	461.74 ± 10.50	166	473.04 ± 7.89	506	471.88 ± 5.03	.506	.278
Hyperphonation (%)	89	1.42 ± 0.98	166	1.72 ± 0.74	508	2.27 ± 0.47	.719	.172
First formant (Hz)	89	1682.16 ± 41.05	166	1640.75 ± 30.84	506	1632.06 ± 19.69	.326	.657
Second formant (Hz)	89	3960.62 ± 42.10	166	3916.03 ± 31.63	506	3938.95 ± 20.19	.217	.465