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Table 2 Descriptives of selected variables for all visits.

From: Routine care provided by specialists to children and adolescents in the United States (2002-2006)

    Medical Specialists Surgical Specialists Psychiatrists Generalists Total
All visits   N 64,238,724 97,887,455 24,399,804 739,160,674 925,686,657
   % 6.9% 10.6% 2.6% 79.8% 100.0%
Sex Female N 30,296,129 52,765,703 8,968,052 356,775,047 448,804,931
   % 47.2% 53.9% 36.8% 48.3% 48.5%
  Male N 33,942,595 45,121,752 15,431,752 382,385,627 476,881,726
   % 52.8% 46.1% 63.2% 51.7% 51.5%
Age   Mean 10.4 10.8 12.7 6.3 7.3
   95%CI [9.8-11.0] [10.3-11.2] [12.3-13.0] [6.2-6.5] [7.1-7.4]
Ethnicity* White, non Hispanic N 47,841,774 70,737,424 19,393,170 508,728,742 646,701,110
   % 74.5% 72.3% 79.5% 68.8% 69.9%
  Black, non Hispanic N 6,148,335 9,938,910 2,203,970 73,553,754 91,844,969
   % 9.6% 10.2% 9.0% 10.0% 9.9%
  Hispanic N 8,095,064 14,783,223 2,326,799 123,906,567 149,111,653
   % 12.6% 15.1% 9.5% 16.8% 16.1%
  Asian/Pacific Islander N 2,153,551 2,427,898 475,865 32,971,611 38,028,925
   % 3.4% 2.5% 2.0% 4.5% 4.1%
Insurance Private insurance N 47,015,087 65,992,342 11,944,789 495,028,949 619,981,167
   % 76.7% 70.3% 50.9% 69.6% 69.7%
  Medicare N 870,996 1,120,416 266,621 9,902,733 12,160,766
   % 1.4% 1.2% 1.1% 1.4% 1.4%
  Medicaid/SCHIP N 10,570,492 24,127,052 6,941,932 187,878,504 229,517,980
   % 17.2% 25.7% 29.6% 26.4% 25.8%
  No insurance N 2,870,618 2,622,247 4,317,028 18,190,300 28,000,193
   % 4.7% 2.8% 18.4% 2.6% 3.2%
Past visits 0 N 3,834,448 6,450,511 226,267 40,817,779 51,329,005
   % 7.82% 9.50% 1.03% 6.07% 6.32%
  1-2 N 20,090,835 31,721,992 4,067,295 227,905,155 283,785,277
   % 40.99% 46.74% 18.48% 33.88% 34.96%
  3-5 N 14,078,175 18,858,710 6,643,475 218,838,397 258,418,757
   % 28.72% 27.78% 30.19% 32.53% 31.84%
  6 or more N 11,010,175 10,842,581 11,071,313 185,215,197 218,139,266
   % 22.46% 15.97% 50.31% 27.53% 26.88%
Time spent   Mean 18.0 17.8 32.6 15.5 16.38
with the physician   95%CI [15.9-20.4] [15.9-19.7] [29.9-35.4] [15.1-15.9] [15.9-16.8]
Major Yes N 54,58,393 8,055,130 8,814,148 1,995,243,756 44,436,728
ADG as   % 8.5% 10.2% 36.1% 2.7% 4.8%
Primary No N 58,757,994 87,941,942 15,601,774 719,026,731 881,328,441
Diagnosis   % 91.5% 89.8% 63.9% 97.3% 95.2%
Number of   Mean 1.7 1.4 1.7 1.3 1.2
diagnoses   95%CI [1.5-1.9] [1.4-1.5] [1.5-1.8] [1.2-1.3] [1.2-1.3]
Visit Primary care N 5,166,752 6,091,280 1,299,516 644,742,251 657,299,799
orientation   % 8.0% 6.2% 5.3% 87.2% 71.0%
  Specialty care N 59,417,648 92,155,172 23,219,654 94,641,064 268,386,858
   % 92.0% 93.8% 94.7% 12.8% 29.0%
  1. CI 95%: Confidence Interval; ADG: Aggregated Diagnostic Groups
  2. All differences across specialists (generalists vs medical specialists vs surgical specialists vs psychiatrists) were statistically significant at the defined α level (0.05) for all variables.