Table 8 Heterogeneous effects of SBP-based hypertension diagnoses on diet structure (diastolic normal individuals ≥ 18 years old).

	Gender		Age		Education		Location
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
Subsamples	Female	Male	< 50 years	≥ 50 years	< 9 years	≥ 9 years	Rural	Urban
A. Dietary Diversity Score (DDS)	−0.472**	−0.831***	−0.613	−0.570***	−0.447**	−0.854**	−0.601***	−0.379
	(0.207)	(0.257)	(0.383)	(0.196)	(0.182)	(0.338)	(0.199)	(0.332)
Optimal bandwidth	11.890	11.116	8.176	12.281	12.270	9.861	12.676	12.294
N	8582	7122	9113	6591	8307	7276	11,860	3844
B. Diet Balance Index (DBI)	−1.729	−4.417**	−3.983*	−1.941	−1.764	−3.736*	−2.395*	−0.766
	(1.301)	(1.867)	(2.349)	(1.235)	(1.265)	(2.074)	(1.233)	(2.335)
Optimal bandwidth	14.524	10.423	9.852	12.968	12.457	10.985	14.992	12.136
N	8239	6835	8703	6371	8025	6937	11,469	3605
C. DBI-O: over-consumption	0.130	−0.607	−0.920	0.307	−0.272	0.502	−0.127	0.962
	(0.663)	(1.015)	(1.323)	(0.627)	(0.710)	(1.083)	(0.586)	(1.298)
Optimal bandwidth	15.237	9.936	9.034	13.994	11.514	12.505	16.962	12.746
N	8239	6835	8703	6371	8025	6937	11,469	3605
D. DBI-U: under-consumption	−1.588	−1.841*	−2.751	−2.050**	−1.249	−4.067***	−2.154**	−1.304
	(0.967)	(1.027)	(1.815)	(0.896)	(0.769)	(1.538)	(0.905)	(1.457)
Optimal bandwidth	11.314	16.894	8.166	12.819	15.720	10.301	13.146	13.443
N	8430	7002	8942	6490	8164	7155	11,697	3735

Data were drawn from the China Health and Nutrition Survey (1997, 2000, 2004, 2006, 2009, and 2011). Analytical samples are restricted to observations within ±40 mmHg intervals of the SBP cutoffs and are diastolic normal (DBP < 90 mmHg). The actual sample size is determined by the optimal bandwidth chosen by minimizing the mean squared error (Calonico et al. 2014). Non-parametric RD estimates (with the triangular kernel) and the associated optimal bandwidth are reported in columns (2) and (3). Standard deviations are reported in brackets. Robust standard errors are reported in parentheses, clustered at the community level.
***p < 0.01; **p < 0.05; *p < 0.1.

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