Table 8.

Difference in parameters with constraints between both patient groups in each nested model for the second revision of hypothetical model (R2).

Parameter	UC		MW		SW		SC		MR
	Z	p	Z	p	Z	p	Z	p	Z	p
βPIR → IL1β	Id
βPIR → IL6	−0.034	0.973
βPIR → MMP8	0.056	0.955
ΒCAL → PIR	−1.019	0.308	−1.224	0.221
ΒCAL → OHIP	0.074	0.941	0.074	0.941
σ2CAL	0.817	0.414	0.817	0.414	0.817	0.414
σ2ε_IL−1β	−1.463	0.143	−1.547	0.122	−1.658	0.097	−1.657	0.098
σ2ε_IL−6	−0.786	0.432	−0.842	0.400	−0.722	0.470	−0.722	0.470
σ2ε_MMP−8	−1.278	0.201	−1.306	0.192	−1.214	0.225	−1.214	0.225
σ2ε_CAL	−1.182	0.237	−1.391	0.164	−1.463	0.143	−1.459	0.145	−0.843	0.399
σ2ε_OHIP	0.563	0.573	0.563	0.573	0.563	0.573	0.563	0.573	−0.933	0.351

Note. Parameter: β = measurement or structural weight, σ2 = structural variance, σ2ε = error variance. Id = Parameter identified or set to 1 in both samples = βPIR → IL1β. Free or unrestricted parameters between samples: βCAL → BDI and σ2ε_BDI in dental patients, as well as βBDI → PIR and σ2BDI in mental health patients. Statistic: Z = Z-test statistic, p = probability value at a two-tailed test. Nested models: UC = unconstrained model, MW = model with constraints on the measurement weights, SW = model with constraints on the structural weights, SC = model with constrains on the structural covariances, and SR = model with constrains on the structural residuals. Variables: PIR = proinflammatory immune response, BDI = total score in the Beck Depression Inventory-II, CAL = clinical attachment loss = mean of sites with insertion loss (≥1 mm) in each participant, IL-1β = Napierian logarithm of salivary interleukin 1 beta concentration, IL-6 = Napierian logarithm of salivary interleukin 6 beta concentration, and MMP8 = Napierian logarithm of salivary matrix metalloproteinase-8 concentration.