Trends in energy and macronutrient intake among Taiwanese older adults in 1999–2000, 2005–2008 and 2013–2016 periods

Table 6 Standardized morbidity ratios of underweight

Underweight	1999–2000		2005–2008			2013–2016			Trend test P-value^c
Underweight	Prevalence n (%)^a	Total	Prevalence n (%)^a	Total	SMR (95% CI)^b	Prevalence n (%)^a	Total	SMR (95% CI)^b	Trend test P-value^c
Overall	97 (7.1)	1386	34 (2.6)	938	0.49 (0.33, 0.74)	28 (2.1)	1033	0.37 (0.24, 0.56)	< 0.001
Men	49 (7.2)	713	19 (3.1)	493	0.49 (0.28, 0.84)	13 (1.4)	540	0.31 (0.16, 0.57)	< 0.001
Women	48 (7.0)	712	15 (2.1)	445	0.49 (0.27, 0.89)	15 (2.8)	493	0.44 (0.24, 0.80)	0.003

Underweight BMI < 18.5 kg/m², SMR standardized morbidity ratio
^a Weighted adjusted
^b Using Poisson regression with adjustment of sex, age, personal monthly income, and urbanization; under gender stratified analysis, adjustment with age, personal monthly income, and urbanization
^c Trend test of survey period

ISSN: 1471-2458