Table 1. Characteristics of women in the LOUSSI study, stratified by smoking status (N = 199)a.
| Nonsmokers (Cotinine < 0.5 ng/mL) | Passive smokers (Cotinine 0.5–13.9 ng/mL) | Active smokers (Cotinine≥14 ng/mL) | P-value | |
|---|---|---|---|---|
| N (%) (n = 71) | N (%) (n = 70) | N (%) (n = 58) | ||
| Age (years) | 0.06 | |||
| 21–25 | 6 (8.4) | 10 (14.2) | 15 (25.9) | |
| 26–30 | 13 (18.3) | 13 (18.6) | 14 (24.1) | |
| 31–35 | 23 (32.4) | 27 (38.6) | 12 (20.7) | |
| 36–45 | 29 (40.9) | 20 (28.6) | 17 (29.3) | |
| Race | <0.001 | |||
| White | 38 (53.5) | 37 (53.6) | 29 (50.0) | |
| Black | 12 (16.9) | 20 (29.0) | 27 (46.6) | |
| Other | 21 (29.6) | 12 (17.4) | 2 (3.4) | |
| Missing | 1 (1.4) | |||
| Age at menarche(years) mean (SD) b | 12.7 (2.0) | 12.4 (1.7) | 12.2 (1.5) | 0.33 |
| Missing | 2 (2.8) | 4 (5.7) | 1 (1.7) | |
| Body Mass Index (kg/m 2 ) | 0.03 | |||
| 17.5–24.9 | 22 (31.4) | 15 (21.8) | 14 (24.1) | |
| 25–29.9 | 26 (37.1) | 19 (27.5) | 12 (20.7) | |
| 30–34.9 | 13 (18.6) | 12 (17.4) | 18 (31.1) | |
| ≥ 35 | 9 (12.9) | 23 (33.3) | 14 (24.1) | |
| Missing | 1 (1.4) | 1 (1.4) | ||
| Polycystic Ovary Syndrome | 0.24 | |||
| No | 47 (68.1) | 38 (54.3) | 36 (62.1) | |
| Yes | 2 (31.9) | 32 (45.7) | 22 (37.9) | |
| Missing | 2 (2.8) | |||
| Parity | 0.11 | |||
| None | 26 (36.6) | 35 (51.5) | 16 (28.1) | |
| One | 17 (23.9) | 14 (20.6) | 17 (29.8) | |
| Two or more | 28 (39.5) | 19 (27.9) | 24 (42.1) | |
| Missing | 2 (2.9) | 1 (1.7) | ||
| Marital Status | <0.001 | |||
| Single | 15 (21.7) | 17 (26.6) | 37 (67.3) | |
| Married | 54 (78.3) | 47 (73.4) | 18 (32.7) | |
| Missing | 2 (2.8) | 6 (8.6) | 3 (5.2) | |
| Serum AMH categories (ng/mL) | 0.32 | |||
| <1 | 19 (26.8) | 19 (27.1) | 9 (15.5) | |
| 1–2 | 14 (19.7) | 10 (14.3) | 14 (24.1) | |
| 2–3 | 20 (28.1) | 18 (25.7) | 22 (38.0) | |
| >3 | 18 (25.4) | 23 (32.9) | 13 (22.4) | |
| Diminished ovarian reserve (DOR) (AMH<1 ng/mL) | 0.23 | |||
| No | 52 (73.2) | 51 (72.9) | 49 (84.5) | |
| Yes | 19 (26.8) | 19 (27.1) | 9 (15.5) | |
| NAT2 Acetylator Status | ||||
| Rapid/ Intermediate Acetylators | 40 (61.5) | 39 (61.9) | 18 (62.1) | 0.99 |
| Slow Acetylators | 25 (38.5) | 24 (38.1) | 11 (37.9) | |
| Missing | 6 (8.5) | 7 (10) | 1 (3.3) |
a Women with cotinine measurements.
b SD = Standard deviation