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Table 4 Combined clustered negative binomial regressions* between playground attribute and number of persons by renovation status

From: Features and amenities of school playgrounds: A direct observation study of utilization and physical activity levels outside of school time

 

Utilization, IRRs (95% CI)

 

Renovated (N = 100)

Unrenovated (N = 100)

Playground Attributes

Adults

Girls

Boys

Adults

Girls

Boys

Total # of play features

1.07 (1.06, 1.07)

1.07 (1.06, 1.08)

1.02 (1.00, 1.03)

--

--

--

Overall cleanliness

--

0.29 (0.15, 0.54)

0.27 (0.13, 0.56)

--

--

1.56 (.52, 4.64)

Overall quality

--

--

--

--

0.26 (0.02, 4.58)

--

Overall safety

--

--

--

--

--

2.77 (1.05, 7.32)

Presence of benches

--

--

--

--

0.82 (0.06, 11.22)

--

Presence of trash cans

--

--

--

--

--

2.02 (0.88, 4.63)

Coverage/shade for resting features

1.44 (1.29, 1.61)

--

2.03 (1.40, 2.92)

--

--

--

  1. Significant results (p <.05) represented in bold.
  2. *Additionally adjusted for the significant playground attributes, a count of parks within a .75 mile network distance of schoolyards, the population of children 17 and under in the census tract of the school, and the enrollment in the school.
  3. IRR = Incident Rate Ratio. CI = Confidence Interval.