Scientific Reports

Table 2 Asthma incidence rate trends with joinpoint analyses from 2004 to 2012 in adults, by sex and age groups.

From: Changing patterns of adult asthma incidence: results from the National Health Insurance Service–National Sample Cohort (NHIS-NSC) database in Korea

	Joinpoint analyses(2004–2012)						AAPC
	Years	APC	Years	APC	Years	APC	2004–2012
Total	2004–2008	13.8^*	2008–2012	−2.9			5.1^†
Men	2004–2008	11.5^*	2008–2012	−3.9^*			3.5^†
Women	2004–2008	15.7^*	2008–2012	−3.2			3.2
Age-group(years)
20–29	2004–2006	22.86	2006–2009	12.65	2009–2012	0.5	10.30^†
30–39	2004–2008	17.79^*	2008–2012	−3.23			6.30^†
40–49	2004–2008	13.76^*	2008–2012	−4.25			4.40^†
50–59	2004–2008	14.52^*	2008–2012	−4.95^*			4.30^†
60–69	2004–2008	12.37^*	2008–2012	−3.99			3.9
≥70	2004–2012	3.06^*					3.10^†

Abbreviations: APC, annual percent change; AAPC, average annual percent change.
Joinpoint analyses with up to 2 joinpoints yielding up to 3 trend segments (Trends 1–3) were based on rates per 1,000 persons and were age-adjusted to the 2005 Korean standard population.
^*The APC is statistically significantly different from zero (2-sided t-test; P < 0.05).
^†The AAPC is statistically significantly different from zero (2-sided Z test; P < 0.05).

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