Age, Period and Cohort Analysis of Rates of Emergency Department Visits Due to Pneumonia in Taiwan, 1998–2012

Figures & data

Table 1 Case Numbers of ER Patient Visits from Pneumonia

Characteristics	Overall	1998–2002	2003–2007	2008–2012	P-value
	Total (%)	Total (%)	Total (%)	Total (%)
	N=1,813,588	N=462,983	N=547,375	N=803,230
Gender
Male	1,057,418 (58.3)	269,980 (58.3)	321,978 (51.1)	465,460 (57.9)	<0.0001*
Female	756,170 (41.7)	193,003 (41.7)	225,397 (48.9)	337,770 (42.1)
Age
0–19	818,208 (45.1)	235,627 (50.9)	261,249 (47.7)	321,332 (40.0)	<0.0001*
20–39	169,824 (9.4)	45,164 (9.7)	53,065 (9.7)	71,595 (8.9)
40–64	264,380 (14.6)	62,356 (13.5)	73,438 (13.4)	128,586 (16.0)
≥65	561,176 (30.9)	119,836 (25.9)	159,623 (29.2)	281,717 (35.1)

Note: *Significant at the 0.05 level for Chi-square test to test for independence between characteristics and time periods.

Figure 1 The age effects of pneumonia-associated ER visits rates for males and females in Taiwan, 1998–2012.

Figure 2 The period effects of pneumonia-associated ER visits rates for males and females in Taiwan, 1998–2012.

Figure 3 The cohort effects of pneumonia-associated ER visits rates for males and females in Taiwan, 1998–2012.

Figure 4 Age-specific ER visit rates of pneumonia-associated in log scale by birth cohort for males and females in Taiwan, 1998–2012.

Figure 5 Observation of age-adjusted visit rates from pneumonia for stratified age groups (includes 0–19 years, 20–64 years, and 65+ years).