Relationships between structure, process and outcome to assess quality of integrated chronic disease management in a rural South African setting: applying a structural equation model

Table 3 The result of the goodness of fit of the specified path models

Criteria	Specified path models
Criteria	Unidirectional	Mediation	Reciprocal
Relative Chi square statistic (χ ²/df)	127/52 = 2.44✓	164/52 = 3.15✓	145/52 = 2.78✓
RMSEA value ≤ 0.06	0.064 (90% CI - 0.052–0.077)	0.058 ✓ (90% CI - 0.045–0.070)	0.059 ✓ (90% CI - 0.047–0.070)
CFI ≥ 0.90	0.915 ✓	0.931 ✓	0.919 ✓
TLI ≥ 0.90	0.892	0.913 ✓	0.910 ✓
CD close to 1.00 (perfect fit is preferred if CD value = 1.00)	0.911 ✓	1.00 ✓	0.632
Ranking**	3^rd	1^st	2^nd

✓Indices with goodness of fit
**The mediation model ranked first because it fulfilled all five criteria (Relative/normed Chi square statistic, RMSEA, CFI, TLI and CD). In addition, it showed a perfect fit based on CD value of 1.00
**The reciprocal model ranked second because it fulfilled four criteria (Relative/normed Chi square statistic, RMSEA, CFI and TLI)
**The unidirectional model ranked third because it fulfilled three criteria (Relative/normed Chi square statistic, CFI and CD)

ISSN: 1472-6963