Change and stability of sense of coherence in adulthood: Longitudinal evidence from the Healthy Child study

The main aim of this three-wave 35-year follow-up study among Finnish employees (n = 532) was to investigate whether Sense of Coherence (SOC) is more stable among those with high SOC compared to those with low SOC, as hypothesized by Antonovsky [Antonovsky, A. (1987). Unraveling the mystery of health: how people manage stress and stay well. San Francisco, CA, US: Jossey-Bass], using two measurement points over 13 years. The participants were first studied in adolescence in 1961–1963, after which they responded to two postal questionnaires measuring SOC, first in 1985, and again in 1998. The results of the Factor Mixture Modeling identified two groups of individuals with different levels and mean changes of SOC: high-SOC (n = 344) and low-SOC (n = 188) individuals. The results supported Antonovsky’s hypothesis: SOC was more stable among high-SOC individuals (stability coefficient 0.57) than among low-SOC individuals (0.31). The results further supported the factor structure of the 11-item SOC scale. However, out of the five generalized resistance resources investigated in adolescence, only the level of home care was associated with SOC in adulthood.