Table A5.
Test of common trend of NL switchers and extended control group.
| (1) | (2) | (3) | (4) | |
|---|---|---|---|---|
| Dependent Variable: | HEI | Share Fat | Share Added Sugar | Share Fiber |
| nl = 1 | 0.242 * | −0.859 | 0.0855 | 0.0287 |
| (0.146) | (0.598) | (0.395) | (0.0599) | |
| year = 2009 | 0.421 *** | −1.270 *** | −0.193 | 0.118 *** |
| (0.0550) | (0.228) | (0.152) | (0.0221) | |
| year = 2010 | 0.391 *** | −1.100 *** | −0.137 | 0.0812 *** |
| (0.0597) | (0.247) | (0.158) | (0.0236) | |
| year = 2011 | 0.419 *** | −1.024 *** | 0.0923 | 0.107 *** |
| (0.0836) | (0.325) | (0.226) | (0.0327) | |
| year = 2012 | 0.249 *** | −1.105 *** | −0.263 ** | 0.0750 *** |
| (0.0363) | (0.171) | (0.121) | (0.0166) | |
| year = 2014 | −0.0132 | −0.267 * | 0.198 * | 0.0104 |
| (0.0269) | (0.143) | (0.112) | (0.0126) | |
| year = 2015 | −0.0584 * | −0.190 | 0.126 | −0.000978 |
| (0.0349) | (0.176) | (0.120) | (0.0160) | |
| year = 2016 | −0.170 *** | −0.258 | 0.349 ** | −0.0382 ** |
| (0.0394) | (0.193) | (0.138) | (0.0178) | |
| 1.nl#2009.year | −0.201 | 0.985 | −0.0298 | −0.0522 |
| (0.159) | (0.621) | (0.428) | (0.0699) | |
| 1.nl#2010.year | −0.254 | 1.536 ** | −0.237 | −0.117 * |
| (0.175) | (0.687) | (0.441) | (0.0637) | |
| 1.nl#2011.year | −0.00272 | 0.942 | −0.112 | −0.0736 |
| (0.158) | (0.623) | (0.452) | (0.0659) | |
| 1.nl#2012.year | −0.143 | 0.791 * | 0.0284 | −0.0381 |
| (0.106) | (0.458) | (0.315) | (0.0473) | |
| 1.nl#2014.year | 0.128 | 0.0323 | −0.144 | 0.0511 |
| (0.0822) | (0.452) | (0.308) | (0.0449) | |
| 1.nl#2015.year | 0.0768 | 0.417 | 0.0327 | 0.0263 |
| (0.0990) | (0.461) | (0.323) | (0.0499) | |
| 1.nl#2016.year | 0.209 * | 0.151 | −0.433 | 0.0877 |
| (0.122) | (0.529) | (0.404) | (0.0631) | |
| Constant | 18.12 *** | 35.59 *** | 9.126 *** | 2.143 *** |
| (0.321) | (1.220) | (0.845) | (0.130) | |
| Observations | 7268 | 7268 | 7268 | 7268 |
| R-squared | 0.085 | 0.057 | 0.039 | 0.043 |
| F-test interaction terms | 1.242 | 1.370 | 0.133 | 1.142 |
| p-value | 0.291 | 0.242 | 0.970 | 0.335 |
Note: Standard errors clustered at the household level in parenthesis. Regression also included controls for age, gender, household size, place of living, education, income group and number of hours of exercise. These are not shown in the table. Reference group: extended control group (NL = 0) and year = 2013. The extended group consists of households who use NL in both years, neither of the years and use in the first year (2013), but not in the second (2015). *** p < 0.01, ** p < 0.05, and * p < 0.1.