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. 2019 Apr 28;7:100401. doi: 10.1016/j.ssmph.2019.100401

Table A3.

Estimated coefficients on the control variables in Table 3 (OLS estimates)

Overall index of poor sleep quality
(1) (2) (3)
Age 0.030*** 0.027*** 0.029***
(0.003) (0.003) (0.003))
Age-squared/100 −0.026*** −0.023*** −0.025***
(0.003) (0.003) (0.003)
Male −0.188*** −0.194*** −0.193***
(0.017) (0.018) (0.018)
Years of education −0.029*** −0.028*** −0.028****
(0.005) (0.005) (0.005)
Married (Reference: Never married) 0.008 0.017 0.012
(0.027) (0.029) (0.029)
Widowed 0.114** 0.113* 0.109*
(0.057) (0.058) (0.058)
Divorced 0.160*** 0.164*** 0.163***
(0.046) (0.047) (0.048)
Separated 0.199*** 0.186*** 0.185***
(0.061) (0.062) (0.062)
Number of children in household 0.002 0.004 0.004
(0.010) (0.010) (0.010)
Log of real household disposable regular income −0.018 −0.014 −0.015
(0.011) (0.011) (0.011)
Living in a major city 0.013 −0.026 −0.026
(0.099) (0.098) (0.098)
Agreeableness −0.034*** −0.033*** −0.033***
(0.010) (0.011) (0.011)
Conscientiousness −0.028*** −0.026*** −0.026***
(0.010) (0.010) (0.010)
Emotional stability (Neuroticism) −0.177*** −0.178*** −0.178***
(0.010) (0.010) (0.010)
Extroversion −0.046*** −0.049*** −0.050***
(0.009) (0.009) (0.009)
Openness to experience 0.033*** 0.032*** 0.032***
(0.010) (0.010) (0.010)
Constant 0.143 0.147 0.119
(0.318) (0.318) (0.319)
Observations 14,503 13,618 13,618
Adjusted R-Squared 0.097 0.097 0.097

Notes: ***p < 0.01; **p < 0.05; *p < 0.10. The dependent variable is the overall index of poor sleep quality predicted from the PCA. Postcode-level fixed effects are included in the estimations. Robust standard errors clustered at the household level are in parentheses.