Table 4 Multivariable inflated beta regression models

 Sub-Model

Parameter

Estimate (standard error)

95 % Confidence Interval of Estimate

t statistic (p value)

  Mean

Intercept (b₀)

−0.1130 (.0609)

−0.2344, −0.0084

−1.85 (.0677)

Workload ψ

−0.3400 (.0602)

−0.4600, −0.2200

−5.65 (<.0001)

Autonomy needs ψ

0.1280 (.0721)

−0.0158, 0.2717

1.77 (.0802)

Relatedness needs ψ

0.1898 (.0761)

0.0382, 0.3414

2.49 (.0149)

Meaningfulness ψ

0.2372 (.0533)

0.1309, 0.3435

4.45 (<.0001)

  Variance

Intercept (d₀)

1.9907 (.0991)

1.7931, 2.1882

20.09 (<.0001)

  One-Inflation

Intercept (one₀)

−1.0837 (.1699)

−1.4233, −0.7452

−6.38 (<.0001)

Workload ψ

−1.0294 (.1892)

−1.4065, −0.6523

−5.44 (<.0001)

Meaningfulness ψ

0.6373 (.1750)

0.2885, 0.9861

3.64 (.0005)

Intolerance of Uncertainty ψ

−0.4058 (.1600)

−0.7246, −0.0870

−2.54 (<.0001)

Unit Support Staff F.T.E.s ψ

−0.3886 (.1832)

−0.7538, −0.0235

−2.12 (.0373)

 Sub-Model

Parameter

Estimate (standard error)

95 % Confidence Interval of Estimate

t statistic (p value)

  Mean

Intercept (b₀)

−0.7590 (.0266)

−0.8119, −0.7061

−28.59 (<.0001)

Workload ψ

0.2732 (.0601)

0.1534, 0.3929

4.55 (<.0001)

Relatedness needs ψ

−0.2437 (.0592)

−0.3618, −0.1257

−4.12 (.0001)

  Variance

Intercept (d₀)

2.2825 (.1429)

1.9977, 2.5673

15.98 (<.0001)

Autonomy needs ψ

0.3616 (.0961)

0.1701, 0.5531

3.76 (.0003)

Risk Aversion ψ

0.2410 (.0941)

0.0535, 0.4285

2.56 (.0125)

  Zero-Inflation

Intercept (zero₀)

−1.1645 (.2906)

−1.7438, −0.5852

−4.01 (.0001)

Not in Primary Care

0.6665 (.3464)

−0.0240, 1.3569

1.92 (.0583)

Workload ψ

−1.1722 (.1932)

−1.5574, −0.7870

−6.07 (<.0001)

Relatedness ψ

0.5691 (.1722)

0.2258, 0.9124

3.30 (.0015)

Meaningfulness ψ

0.6738 (.1807)

0.3136, 1.0339

3.73 (.0004)

Intolerance of Uncertainty ψ

−0.3895 (.1608)

−0.7101, −0.0689

−2.42 (.0179)