TABLE 4.

Unadjusted and adjusted FORs by baseline psychosocial stress measures.

Measure^a	Unadjusted		Adjusted^b
Measure^a	FOR	95% CI	Adjusted FOR	95% CI
PSS
Quartile 1 (2–9)	1.00	–	1.00	–
Quartile 2 (10–14)	0.82	0.54, 1.25	0.81	0.52, 1.25
Quartile 3 (15–19)	0.92	0.59, 1.43	0.98	0.61, 1.56
Quartile 4 (20–33)	0.89	0.57, 1.39	0.94	0.59, 1.50
HADS, anxiety
Quartile 1 (0–3)	1.00	–	1.00	–
Quartile 2 (4–5)	0.93	0.59, 1.45	0.98	0.62, 1.56
Quartile 3 (6–8)	1.22	0.81, 1.84	1.26	0.82, 1.94
Quartile 4 (9–17)	1.21	0.78, 1.89	1.26	0.79, 2.02
HADS, depression
Quartile 1 (0)	1.00	–	1.00	–
Quartile 2 (1)	0.92	0.57, 1.47	0.88	0.55, 1.35
Quartile 3 (2–4)	1.04	0.69, 1.55	1.08	0.69, 1.57
Quartile 4 (5–14)	0.89	0.56, 1.40	0.78	0.47, 1.20
STAI, state
Quartile 1 (20–28)	1.00	–	1.00	–
Quartile 2 (29–34)	1.38	0.90, 2.12	1.62	1.04, 2.54
Quartile 3 (35–43)	0.99	0.64, 1.52	1.06	0.67, 1.67
Quartile 4 (44–70)	0.93	0.60, 1.45	0.97	0.60, 1.54
STAI, trait
Quartile 1 (23–31)	1.00	–	1.00	–
Quartile 2 (32–35)	1.27	0.84, 1.92	1.33	0.87, 2.04
Quartile 3 (36–44)	1.02	0.65, 1.60	1.07	0.66, 1.72
Quartile 4 (45–66)	0.99	0.64, 1.53	1.10	0.69, 1.73
Medical Outcomes Study Social Support
Quartile 1 (36–75)	1.00	–	1.00	–
Quartile 2 (76–84)	1.14	0.74, 1.76	1.23	0.78, 1.94
Quartile 3 (85–91)	1.58	1.03, 2.42	1.79	1.14, 2.82
Quartile 4 (92–95)	1.22	0.78, 1.92	1.35	0.83, 2.20
Pearlin Mastery Scale
Quartile 1 (12–18)	1.00	–	1.00	–
Quartile 2 (19–21)	0.74	0.48, 1.12	0.75	0.48, 1.19
Quartile 3 (22–24)	0.94	0.62, 1.43	1.07	0.67, 1.70
Quartile 4 (25–28)	0.74	0.46, 1.19	0.79	0.46, 1.36

Range represents the range of scores in that quartile.

Adjusted for woman’s age, parity, number of months trying to conceive before study entry, woman’s average smoking, woman’s average caffeine consumption, and woman’s average number of acts of intercourse during the fertile window.