Table 4.

Meta-analysis of distribution of TCM constitutions by age in DM patients.

Constitution	Age	Studies	Participants	Proportion (%)	95% CI	P
Yin-deficiency	≤45	4	136	23	12%–38%	<0.01
	46–60	31	1352	14	11%–19%	<0.01
	>60	29	1916	19	15%–23%	<0.01
Phlegm-dampness	≤45	4	79	15	7%–31%	<0.01
	46–60	30	1356	15	11%–19%	<0.01
	>60	29	1846	18	16%–21%	<0.01
Qi-deficiency	≤45	4	65	8	4%–14%	≤0.01
	46–60	31	1173	12	9%–15%	<0.01
	>60	28	1699	16	13%–20%	<0.01