Table 3.

Weekly mortality risk effect estimates of covariates (data not transformed) and model selection results using Akaike's information criterion adjusted for small sample sizes (AICc) for Cox proportional hazards generalized linear mixed models estimating weekly mortality risk of radio‐collared adult female white‐tailed deer, Upper Peninsula of Michigan, USA, 1 February–31 May, 2009–2015

Covariate						AICc	∆AICc
Age	Age2	Mass	Snow depth	SFDa	WSIb
		−0.044		−0.085	0.0192	383.308	0.000
				−0.083	0.0187	384.302	0.994
−0.039	0.007	−0.048		−0.082	0.0197	385.718	2.410
−0.159	0.014			−0.083	0.0198	386.683	3.376
		−0.045		−0.068		391.930	8.622
				−0.069		393.441	10.133
0.056	0.000	−0.050		−0.071		394.351	11.043
		−0.043			0.0163	395.513	12.205
−0.096	0.010			−0.063		396.367	13.059
					0.0140	396.717	13.410
−0.012	0.007	−0.049			0.0182	396.737	13.429
		−0.040	−0.001		0.0168	397.254	13.947
			−0.001		0.0150	398.066	14.759
−0.122	0.013				0.0158	398.420	15.113
−0.009	0.006	−0.047	−0.001		0.0187	398.483	15.175
−0.106	0.012		−0.001		0.0168	399.770	16.462
		−0.034				407.367	24.059
						407.660	24.353
		−0.034	−0.001			408.496	25.189
			−0.001			408.681	25.373
0.072	−0.001	−0.043				409.754	26.446
0.073	−0.001	−0.043	−0.001			410.678	27.371
−0.030	0.005					410.767	27.459
−0.025	0.005		−0.001			411.620	28.312

SFD represents weekly cumulative snow‐free days, and WSI represents weekly cumulative winter severity index. All models included study area as a random effect.

^aCumulative snow‐free days from 1 November to 31 May.

^bCumulative winter severity index from 1 November to 31 May (Delgiudice et al., 2002).