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Table 1 Descriptive statistics for EMS data, including number of observations (n) and percent of total (%)

From: Impacts of extreme heat on emergency medical service calls in King County, Washington, 2007–2012: relative risk and time series analyses of basic and advanced life support

Variable

BLS

ALS

n (%)

n (%)

Total calls

361,434

94,565

Average calls per day

394

103

Gender

  Male

174,667 (48)

48,779 (52)

  Female

186,767 (52)

45,786 (48)

Age group

  0–4

10,436 (3)

2,141 (2)

  5–14

11,414 (3)

1,654 (2)

  15–44

116,587 (32)

23,194 (25)

  45–64

9,887 (27)

30,426 (32)

  65–84

80,221 (22)

25,407 (27)

  85+

43,899 (12)

11,743 (12)

Patient type

Trauma

47,005 (13)

6,127 (6.5)

Non-trauma

238,045 (66)

82,232 (87)

 Abdominal/genito-urinary

26,452

5,172

 Alcohol/drugs

17,353

4,253

 Anaphylaxis/allergic reaction

3,515

1,145

 Cardiovascular

30,259

24,130

 Metabolic/endocrine

9,439

4,286

   Diabetes

7,075

3,841

 Neurological

47,986

13,551

   Suspected CVA

6,432

1,354

   Suspected TIA

694

68

   Seizures

10,956

3,827

   Febrile seizures

1,037

289

 OBGYN

2,854

992

 Other medical

58,164

14,324

   Heat illness & dehydration

3,400

514

 Psychological

18,149

3,267

 Respiratory

23,874

11,112

   Asthma

1,130

583

  Emphysema/COPD

812

580

Not specified

76,384 (21)

6,206 (6.5)

Level of transportation

354526

93608

 No transportation

87,174 (25)

12,016 (13)

 Any transportation

267,352 (75)

81,592 (87)

  1. CVA cerebrovascular accident, TIA transient–ischemic attack, OBGYN obstetrics/gynecology, COPD chronic obstructive pulmonary disease