A Note on the Adaptive LASSO for Zero-Inflated Poisson Regression

Table 3

Summary of predictors in German health care demand data.

Variables	Mean (sd) or Frequency	Description
health	6.84 (2.19)	health satisfaction (low) - (high)
handicap	216 / 1596	handicap, otherwise
hdegree	6.16 (18.49)	degree of handicap in percentage points
married	1257 / 555	married, otherwise
schooling	11.83 (2.49)	years of schooling
hhincome	4.52 (2.13)	household income per month in German marks/1000
children	703 / 1109	children under 16 in household, otherwise
self	153 / 1659	self-employed, otherwise
civil	198 / 1614	civil servant, otherwise
bluec	566 / 1246	blue collar employee, otherwise
employed	1506 / 306	employed, otherwise
public	1535 / 277	public health insurance, otherwise
addon	33 / 1779	addon insurance, otherwise
age30	1480 / 332	if age 30
age35	1176 / 636	if age 35
age40	919 / 893	if age 40
age45	716 / 1096	if age 45
age50	535 / 1227	if age 50
age55	351 / 1461	if age 55
age60	147 / 1665	if age 60