Table 5.

The results of sensitivity analysis (N = 3309, n = 137)

Flexibility score as a 7 level categorical variable (Baseline = Score 0)
Score	Coefficient	95% Confidence interval	p-value
Score 1	− 141	(−220, −61)	0.001
Score 2	−149	(−235, −63)	0.001
Score 3	− 253	(− 338, − 168)	< 0.001
Score 4	− 172	(− 261, −83)	< 0.001
Score 5	−232	(− 317, −146)	< 0.001
Score 6	−146	(− 254, −38)	0.008
Score 7	−197	(− 283, − 111)	< 0.001
GDP	0.005	(0.004, 0.005)	< 0.001
1990–1994	−47	(−57, −36)	< 0.001
1995–1999	−86	(−96, −75)	< 0.001
2000–2004	− 130	(−141, −120)	< 0.001
2005–2009	−196	(− 208, −184)	< 0.001
2010–2013	−249	(− 264, − 233)	< 0.001
Constant	564	(484, 643)	< 0.001
Flexibility score as a binary variable (Score < 3 versus > = 3)
Flexibility Score > = 3	−82	(−106, −57)	< 0.001
GDP	0.005	(0.005, 0.006)	< 0.001
1990–1994	−47	(−58, −37)	< 0.001
1995–1999	−87	(−98, −76)	< 0.001
2000–2004	−132	(− 143, −121)	< 0.001
2005–2009	−198	(− 210, − 185)	< 0.001
2010–2013	− 248	(− 263, −233)	< 0.001
Constant	432	(415, 449)	< 0.001

GDP Gross Domestic Product Per Capita (US$)

N = total no. of observations, n = number of countries

Adjusted for Time and GDP