A longitudinal analysis of mental and general health status of informal carers in Australia

BMC Public Health

Table 4 Estimates of the Fixed Effects Base Model for SF36 Physical Functioning Component

Variables	SF36 Physical Functioning Component
Variables	Coef. (Standard Error)	[95% Conf. Coef.
Carer Status (Yes/No): Actively cares for a household member/non-resident due to long-term health condition, elderly	− 0.199 (0.240)	−0.669	0.271
Constant	83.913*** (.017)	83.880	83.946
sigma_u	21.537
sigma_e	13.109
rho	0.730 (fraction of variance due to u_i)

Notes. All the p-values have been replaced by stars and categorised as follows. ***: p < 0.01; **: p < 0.05; *: p < 0.1; However, confidence intervals use the usual 95% confidence level; sigma_u: Within-individuals variance; sigma_e: Residual variance; rho: Percentage of total variance due to within-individuals variation (or ICC, the intra-class correlation, measure of intra-individual correlation)

ISSN: 1471-2458