Table 4.

Perceived Stress Scale total scores (PSS Total) and mood, in relation to same-day occurrence of substance use and stress events (n=161).

	Stress Event	Drug Event	Opioid Use	Cocaine Use
	(EMA)	(EMA)	(Urine Screen)	(Urine Screen)
PSS Total	1.05 (1.01– 1.08)	1.05 (1.03– 1.08)	1.05 (1.02– 1.07)	1.10 (1.07–1.13)
Female Sex	0.84 (0.52– 1.36)	1.56 (0.96– 2.54)	2.03 (0.71– 5.77)	1.09 (0.28–4.25)
Angry…Afraid	1.42 (1.11– 1.82)	0.97 (0.79– 1.19)	1.23 (1.00– 1.51)	1.12 (0.88–1.44)
Female Sex	0.88 (0.55– 1.42)	1.46 (0.87– 2.43)	2.07 (0.73– 5.87)	1.01 (0.25–4.03)
Content Mood	0.67 (0.55– 0.81)	0.92 (0.79– 1.08)	0.87 (0.74– 1.01)	0.80 (0.66–0.97)
Female Sex	0.89 (0.55– 1.43)	1.47 (0.88– 2.45)	2.15 (0.76– 6.11)	1.06 (0.26–4.24)
Happy Mood	1.15 (0.87– 1.52)	0.85 (0.66– 1.09)	0.73 (0.58– 0.91)	0.89 (0.67–1.17)
Female Sex	0.87 (0.54– 1.41)	1.46 (0.88– 2.44)	2.11 (0.74– 5.98)	1.02 (0.25–4.06)
Sad Mood	1.37 (0.97– 1.93)	1.47 (1.14– 1.90)	1.91 (1.42– 2.57)	2.04 (1.43–2.90)
Female Sex	0.88 (0.54– 1.42)	1.50 (0.90– 2.50)	2.20 (0.77– 6.27)	1.09 (0.27–4.37)
Smoking ≥10 CPD	1.29 (0.98– 1.70)	1.68 (1.38– 2.05)	1.41 (1.15– 1.73)	0.99 (0.79–1.25)
Female Sex	0.88 (0.55– 1.43)	1.48 (0.89– 2.48)	2.15 (0.75– 6.16)	1.05 (0.26–4.25)

All participants were smokers and provided at least two weeks of EMA data. Within-person effects are shown as odds ratios (95% CIs); bold type indicates statistical significance (p<0.05); each model adjusted for between-person effects. Odds ratios are interpreted as the change in risk of the outcome associated with a unit increase in the independent variable (i.e. an OR of 2 means a doubling of risk associated with a unit increase in the DV, an OR of 0.5 denotes a halving of risk associated with a unit increase in the DV).