Table 1.

Summary of GA, sex, CE, Mf, and smoking exposure for preterm and full-term newborns

Subject number	Sex	GA, weeks	CE	Mf × 10−6	lnMf × 10−6	95% Confidence interval		Smoking group*
						Lower	Upper
Preterm newborns
PI 4	F	26	0.24	1.04	0.04	−0.86	0.94	I
PI 9	F	27	0.08	4.36	1.47	0.62	2.32	I
PS 8	F	27	0.19	2.52	0.92	0.02	1.82	III
PI 31	F	29	0.01	17.41	2.86	0.08	5.63	III
PS 9	F	29	0.34	0.54	−0.61	−1.76	0.53	II
PI 22	F	30	0.12	1.45	0.37	−1.04	1.79	I
PS 25	F	30	0.06	1.16	0.15	−1.29	1.58	I
PI 25	F	31	0.11	3.17	1.15	0.14	2.17	I
PI 33	F	31	0.14	0.41	−0.88	−2.86	1.09	III
PI 41	F	31	0.16	6.54	1.88	−0.10	3.85	I
PS 26a	F	31	0.53	0.66	−0.42	−1.18	0.35	I
PS 26c	F	31	0.40	0.44	−0.83	−2.80	1.14	I
PI 36	F	32	0.19	0.78	−0.24	−1.40	0.91	I
MFS 28	F	33	0.03	1.93	0.66	−1.44	2.76	I
PI 3	F	33	0.10	1.74	0.55	−0.86	1.97	IV
PI 14	F	33	0.04	17.54	2.86	1.95	3.78	I
PI 1	F	34	0.05	3.98	1.38	0.34	2.43	II
PS 12b	F	34	0.18	0.54	−0.61	−2.02	0.80	I
PS 5	F	35	0.15	2.09	0.74	0.04	1.44	III
PS 14	F	35	0.36	0.41	−0.89	−1.89	0.11	IV
PS 21	M	26	0.37	1.21	0.19	−0.64	1.02	IV
PS 22	M	27	0.31	0.15	−1.89	−3.86	0.08	I
PI 40	M	28	0.09	1.93	0.66	−1.33	2.65	I
PS 30	M	29	0.25	1.84	0.61	−0.04	1.26	I
PI 28	M	31	0.02	1.16	0.15	−1.88	2.18	II
PS 23	M	31	0.31	0.37	−0.98	−2.38	0.41	IV
PS 26b	M	31	0.48	0.31	−1.17	−2.32	−0.02	I
PS 29	M	31	0.46	0.76	−0.28	−1.09	0.54	II
PI 8	M	32	0.17	0.91	−0.09	−1.10	0.92	II
PI 18	M	32	0.11	2.26	0.82	−0.10	1.74	II
PI 43	M	32	0.11	1.58	0.46	−1.52	2.44	I
PS 18	M	32	0.16	0.49	−0.71	−1.87	0.44	II
PS 19	M	32	0.32	0.57	−0.56	−1.32	0.21	I
MFS 104	M	33	0.49	0.36	−1.03	−2.18	0.11	I
PI 2	M	33	0.09	1.93	0.66	−0.76	2.08	IV
PI 12	M	33	0.17	1.54	0.43	−0.75	1.61	I
PI 34	M	33	0.15	0.77	−0.26	−2.23	1.72	II
PI 44	M	33	0.14	1.42	0.35	−0.66	1.36	IV
PI 46	M	33	0.23	0.25	−1.38	−3.35	0.59	II
PS 6	M	33	0.18	0.39	−0.95	−2.92	1.02	I
PS 10	M	33	0.07	0.52	−0.66	−2.08	0.77	II
PI 6	M	34	0.02	3.48	1.25	−0.25	2.74	I
PI 7	M	34	0.04	1.34	0.29	−1.18	1.76	I
PS 16	M	34	0.10	1.92	0.65	−0.07	1.37	IV
PS 20	M	34	0.25	0.42	−0.87	−2.27	0.53	I
MFS 7	M	35	0.68	0.57	−0.56	−1.56	0.43	IV
PI 10	M	35	0.08	2.18	0.78	−0.65	2.21	I
PI 20	M	35	0.11	0.79	−0.24	−2.21	1.74	I
PS 2	M	35	0.19	0.26	−1.34	−3.31	0.63	I
PS 7	M	35	0.44	0.37	−1.00	−1.47	−0.54	I
PS 13	M	35	0.25	0.11	−2.18	−4.15	−0.21	I
PS 15	M	35	0.38	0.57	−0.56	−1.45	0.34	II
Full-term newborns
MFS 61a	F	36	0.45	0.32	−1.14	−2.08	−0.20	IV
PS 32	F	36	0.07	2.69	0.99	0.08	1.89	II
MFS 66	F	37	0.25	0.70	−0.36	−2.33	1.61	IV
MFS 77	F	38	0.10	0.87	−0.14	−1.56	1.28	I
MFS 94	F	38	0.47	0.14	−1.97	−3.38	0.56	IV
MFS 111	F	38	0.36	1.30	0.26	−0.88	1.41	II
MFS 8	F	39	0.57	0.50	−0.69	−1.58	0.20	I
MFS 29	F	39	0.29	0.40	−0.92	−2.89	1.06	II
MFS 78	F	39	0.29	0.60	−0.51	−2.06	1.04	IV
MFS 85	F	39	0.35	0.66	−0.42	−1.31	0.48	III
MFS 105	F	39	0.18	0.18	−1.71	−3.69	0.26	III
MFS 6	F	40	0.59	0.29	−1.24	−2.38	−0.10	II
MFS 15	F	40	0.20	0.24	−1.43	−2.83	−0.03	I
MFS 24	F	40	0.22	0.79	−0.24	−1.14	0.66	IV
MFS 41	F	40	0.36	0.10	−2.30	−4.27	−0.33	I
MFS 53	F	40	0.25	0.56	−0.58	−1.98	0.82	III
MFS 54	F	40	0.15	0.71	−0.34	−1.37	0.69	III
MFS 73	F	40	0.07	1.81	0.59	−0.83	2.02	II
MFS 79	F	40	0.20	0.58	−0.54	−1.70	0.61	IV
MFS 108	F	40	0.06	1.16	0.15	−1.84	2.14	I
MFS 63	F	40	0.32	0.54	−0.62	−1.76	0.53	I
MFS 9	F	41	0.58	0.10	−2.30	−4.27	−0.33	IV
MFS 11	F	41	0.48	1.20	0.18	−0.46	0.82	II
MFS 26	F	41	0.22	0.95	−0.05	−1.20	1.10	I
MFS 42	F	42	0.16	0.18	−1.71	−3.83	0.40	II
MFS 62	F	42	0.33	0.47	−0.76	−2.15	0.64	II
PS 24	M	36	0.68	0.82	−0.19	−0.72	0.33	III
MFS 74	M	36	0.61	0.87	−0.14	−1.28	1.00	II
MFS 61b	M	36	0.50	0.23	−1.47	−2.87	−0.07	IV
MFS 31	M	37	0.04	0.96	−0.04	−2.07	1.98	III
MFS 36	M	37	0.60	0.47	−0.76	−1.47	−0.04	I
MFS 16	M	38	0.33	1.06	0.06	−1.09	1.20	I
MFS 27	M	38	0.22	0.23	−1.47	−2.62	−0.32	I
MFS 45	M	38	0.13	0.67	−0.40	−2.38	1.58	I
MFS 103	M	38	0.27	0.24	−1.43	−2.58	−0.28	IV
MFS 65	M	38	0.15	6.37	1.85	1.34	2.36	IV
MFS 82	M	38	0.18	0.64	−0.45	−1.60	0.071	II
MFS 1	M	39	0.30	1.16	0.15	−0.85	1.15	IV
MFS 5	M	39	0.19	1.80	0.59	−0.42	1.60	III
MFS 30	M	39	0.09	3.60	1.28	0.25	2.31	IV
MFS 43	M	39	0.43	0.47	−0.76	−1.51	0.00	IV
MFS 58	M	39	0.36	0.58	−0.54	−1.37	0.28	III
MFS 59	M	39	0.17	0.85	−0.16	−1.07	0.75	IV
MFS 64	M	39	0.13	2.93	1.26	0.23	1.92	IV
MFS 71	M	39	0.20	0.75	−0.29	−1.06	0.49	II
MFS 72	M	39	0.47	0.85	−0.16	−0.88	0.55	III
MFS 87	M	39	0.47	0.45	−0.80	−1.94	0.35	I
MFS 95	M	39	0.43	0.88	−0.13	−0.89	0.63	IV
MFS 99	M	39	0.23	0.43	−0.84	−2.81	1.13	II
MFS 2	M	40	0.75	1.22	0.20	−0.37	0.77	IV
MFS 25	M	40	0.20	0.87	−0.14	−1.29	1.01	I
MFS 39	M	40	0.69	0.13	−2.04	−3.44	−0.64	I
MFS 40	M	40	0.42	0.55	−0.60	−1.49	0.30	IV
MFS 44	M	40	0.24	0.16	−1.83	−3.81	0.14	I
MFS 56	M	40	0.14	1.56	0.44	−0.47	1.36	I
MFS 60	M	40	0.13	0.45	−0.80	−2.21	0.61	I
MFS 84	M	40	0.61	0.35	−1.05	−2.05	−0.05	I
MFS 97	M	40	0.50	0.14	−1.97	−3.36	−0.57	II
MFS 57	M	41	0.09	2.77	1.02	0.09	1.95	IV
MFS 68	M	41	0.40	0.64	−0.45	−1.21	0.32	IV
MFS 75	M	41	0.31	1.61	0.48	−0.42	1.37	IV
MFS 86	M	41	0.42	1.11	0.10	−0.54	0.75	I
MFS 88	M	42	0.45	1.21	0.19	−0.57	0.95	I

^*Group I, preterm newborns whose mothers had no history of active or passive cigarette exposure during the pregnancy; group II, preterm newborns whose mothers actively smoked cigarettes throughout the pregnancy; group III, preterm newborns whose mothers actively smoked cigarettes during first trimester only; and group IV, preterm newborns whose mothers were exposed only to passive cigarette smoke.