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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Med Care. 2015 Jan;53(1):65–70. doi: 10.1097/MLR.0000000000000258

Table 1.

Characteristics of Study Hospitals with Number and Percentage of Patients and Nurses

Patient (n=220,914) Nurse (n=25,082) Hospital (n=518)

N (%) N (%) N (%)
Ownership
    Non-profit 184,684 (83.6) 22,457 (89.5) 425 (80.5)
    For profit 36,230 (16.4) 2,625 (10.5) 103 (19.5)
Bed size
    Small (<=100) 7,892 (3.6) 931 (3.7) 55 (10.4)
    Medium (101-250) 61,896 (28.0) 7,057 (28.1) 231 (43.8)
    Large (>=251) 151,126 (68.4) 17,094 (68.2) 242 (45.8)
Teaching status
    Non-teaching 105,564 (47.8) 10,550 (42.1) 271 (51.3)
    Minor 92,003 (41.7) 10,540 (42.0) 214 (40.5)
    Major 23,347 (10.6) 3,992 (15.9) 43 (8.1)
Technology level
    Not high tech 66,895 (30.3) 8,968 (35.8) 277 (52.7)
    High tech 154,019 (69.7) 16,114 (64.3) 251 (47.5)
Location
    Rural 11,026 (5.0) 1,194 (4.8) 52 (9.9)
    Urban 209,888 (95.0) 23,888 (95.2) 476 (90.2)
Nurse work environment
    Poor (<=2.60) 49,800 (22.5) 5,537 (22.1) 162 (30.7)
    Mixed (2.60-2.83) 96,134 (43.5) 11,478 (45.8) 215 (40.7)
    Good (>=2.83) 74,980 (33.9) 8,067 (32.2) 151 (28.6)
Nurse staffing (patient/nurse)
    <=4 41,496 (18.9) 4,816 (19.2) 96 (18.2)
    >4 & <=5 84,710 (38.4) 10,222 (40.8) 175 (33.1)
    >5 & <=6 61,062 (27.4) 6,332 (25.3) 142 (26.9)
    >6 & <=7 24,289 (11.0) 2,625 (10.5) 70 (13.3)
    >7 9,357 (4.2) 1,087 (4.3) 45 (8.5)
Nurse education (BSN)
    <=20% 14,895 (6.7) 1,340 (5.3) 51 (9.7)
    >20% & <=30% 37,987 (17.2) 3,856 (15.4) 98 (18.6)
    >30% & <=40% 66,374 (30.1) 7,033 (28.0) 151 (28.6)
    >40% & <=50% 63,599 (28.8) 7,422 (29.6) 142 (26.9)
    >50% 38,059 (17.2) 5,431 (21.7) 86 (16.3)

Note: Hospitals with poor work environments: overall environment score was 0.5 SD or more below the mean; hospitals with mixed work environments: overall environment score was mean ± 0.5 SD; hospitals with good work environments: overall environment score was 0.5 SD or more above the mean.