Factors affecting the survival probability of becoming a centenarian for those aged 70, based on the human mortality database: income, health expenditure, telephone, and sanitation

Table 3 Univariate variables for the SPBC (70)

	Variable	Coefficient	T-Value	P-Value	R²
SPBC (70) MF	GNI	0.002	3.65	0.001	0.308
	PEHGDP	19.87	3.93	0.001	0.341
	FMTS	1.966	3.93	0.001	0.371
	ISF	3.583	2.26	0.003	0.146
SPBC (70) MF	GNI	0.008	2.54	0.001	0.177
	PEHGDP	5.751	2.82	0.008	0.209
	FMTS	0.619	3.35	0.002	0.272
	ISF	1.212	2.04	0.049	0.122
SPBC (70) MF	GNI	0.004	3.78	0.001	0.322
	PEHGDP	31.19	4.05	0.001	0.353
	FMTS	3.089	4.36	0.001	0.388
	ISF	5.635	2.32	0.028	0.152

SPBC (70): Survival probability of becoming a centenarian for those aged 70 (per 10,000).
MF: Females and Males, M: Males, F: Females.
GNI: Gross National Income per capita (constant 2005 international $) (1990–2010).
PEHGDP: Public expenditure on health as a percentage of GDP (% of GDP) (2000–2010).
FMTS: Fixed and mobile telephone subscribers (per 100 people) (1980–1990).
ISF: Proportion of the population using improved sanitation facilities (%), urban (2005–2010).

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