Table 2.

Perceived stress and cognitive bias across time.

	Measurement occasion				Model effect
Measurements during menstrual cycle	T1 Menstrual phase	T2 Pre-ovulatory phase	T3 Mid-luteal phase	T4 Premenstrual phase
Measurements during fertility treatment	End of down-regulation/preparation phase	End of stimulation phase
	Mean (95% CI)	Mean (95% CI)	Mean (95% CI)	Mean (95% CI)	p
PSQ worry
Control	9.7 (8.9–10.5)	9.1 (8.4–9.9)	8.9 (8.1–9.6)	8.6 (7.9–9.3)	0.001
Fertility treatment	8.9 (8.0–9.8)	8.8 (7.9–9.8)			0.809
PSQ tension
Control	11.4 (10.7–12.1)	11.1 (10.4–11.8)	11.1 (10.5–11.8)	11.3 (10.6–12.0)	0.694
Fertility treatment	11.2 (10.2–12.2)	11.2 (10.2–12.4)			0.860
PSQ lack of joy
Control	9.9 (9.3–10.6)	10.2 (9.5–10.9)	10.2 (9.6–10.9)	10.3 (9.6–11.0)	0.574
Fertility treatment	10.3 (9.5–11.2)	10.1 (9.1–11.1)			0.645
PSQ demands
Control	11.7 (11.1–12.4)	11.0 (10.4–11.7)	10.8 (10.1–11.6)	11.1 (10.4–11.7)	0.093
Fertility treatment	10.3 (9.5–11.2)	10.4 (9.3–11.6)			0.831
Cognitive bias
Control	7.4 (6.7–8.1)	6.2 (5.6–6.8)	6.5 (5.8–7.2)	6.5 (5.8–7.3)	0.004
Fertility treatment	7.1 (6.2–8.1)	7.2 (5.7–9.0)			0.902
Estradiol (log)
Control	5.0 (4.9–5.1)	6.4 (6.3–6.6)	6.3 (6.2–6.4)	5.7 (5.5–5.8)	<0.001
Fertility treatment	3.4 (3.1–3.8)	8.2 (8.0–8.5)			<0.001