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Table 2 Overlap of visits among the visit types, by outcome

From: Comparison of emergency department and hospital admissions data for air pollution time-series studies

Case Group

Percentage of ED visits that were admitted

Percentage of hospital admissions that came through the ED

Percentage of visits coded as non-elective

All HA

Non-elective HA

HA through ED

ED

All HA

Non-elective HA

HA through ED

All visits

17.9

50.8

69.8

100

89.9

70.1

100

96.3

RD

15.1

82.4

91.4

100

78.5

87.3

100

96.9

Asthma/Wheeze

15.8

85.9

93.0

100

95.9

89.8

100

97.2

Pneumonia

50.4

82.5

91.6

100

94.1

87.1

100

96.7

CVD

73.8

62.0

85.3

100

95.7

70.8

100

97.3

Dysrhythmia

51.2

66.3

85.9

100

97.2

75.3

100

97.6

CHF

83.7

76.9

89.7

100

96.8

83.0

100

96.8

  1. RD respiratory disease group, CVD cardiovascular disease group, CHF congestive heart failure, ED emergency department, HA hospital admission.