. Author manuscript; available in PMC: 2017 Sep 19.

Published in final edited form as: Int J Alcohol Drug Res. 2014;3(1):5–15. doi: 10.7895/ijadr.v3i1.158

Table 4.

Believability of different messaging contexts (Evaluative Statement 3): Proportions of study participants’ responses across four groups defined by pregnancy status and city of residence.

What kinds of information on drinking during pregnancy would you believe? How much would you believe it?	Full Sample	SPB		NNR		Strata Difference

	Proportion	Pregnant	Non- pregnant	Pregnant	Non- pregnant	JT^π (Z Statistic)

Research data ^a,^b,^c3						−2.76^**
Not at all/Not very much/Not sure	0.17	0.07	0.04	0.20	0.38
Somewhat	0.26	0.36	0.45	0.06	0.18
Very much	0.57	0.57	0.50	0.74	0.45
Personal testimony ^a,^b,^c2,^f						−5.00^**
Not at all/Not very much/Not sure	0.36	0.11	0.13	0.73	0.52
Somewhat	0.33	0.46	0.5	0.12	0.20
Very much	0.31	0.43	0.37	0.15	0.28
Doctor’s recommendation ^a,^b,^c3,^f						−5.71^**
Not at all/Not very much/Not sure	0.15	0.05	0.03	0.32	0.38
Somewhat	0.25	0.23	0.44	0.0	0.41
Very much	0.60	0.73	0.531	0.68	0.41
Well-known spokesperson ^a,^b,^f,^g						−4.48^**
Not at all/Not very much/Not sure	0.49	0.37	0.24	0.37	0.52
Somewhat	0.32	0.42	0.55	0.42	0.24
Very much	0.18	0.21	0.21	0.21	0.24

^π

Jonckheere-Terpstra test of ordered (mean response) differences between the four strata (two-sided test).

Significant main effects (Reference group):

Pregnancy status (non-pregnant),

City (NNR),

^c1

TWEAK risk (no risk),

^c2

T-ACE (no risk),

^c3

Binge drinking when non-pregnant (non-binge drinker),

Marital Status (single/divorced/never married/widowed),

Age (< 30 years),

Education (< middle level college) and

Income (> 3,000 rubles).

The significant main effects are obtained after controlling for confounding variables indicated as superscripts on each question domain. For example, for the model examining differences in research data believability (Research data ^a,^b,^c3), the main effects reported for pregnancy status are adjusted for differences in city of residence and binge-drinking behavior.

Reference category for the multinomial equations was the response category Not at all or Not very much or Not sure.

^**

p-value < 0.05,

p-value < 0.10 (two-tailed tests).