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. 2019 Nov 1;19:1436. doi: 10.1186/s12889-019-7816-8

Table 2.

Descriptive Statistics of the Variables over time (Waves 5–15)

Variable Mean/Percent (total responses =121,410, N = 23,251) Minimum Average across waves Maximum Average across waves
SF36 Mental Health Component Score 74.41 (17.08) 73.61 74.99
SF36 General Health Component Score 68.46 (20.94) 67.25 69.69
SF36 Physical Functioning Component Score 83.90 (22.92) 83.43 84.60
Household financial year gross total income ($) 108,261.2 (102,164.1) 81,929.9 126,464.0
Age 44.17 (18.54) 43.4 44.9
Life events in past year: Serious personal injury/illness (# of events) 8.79 7.59 9.75
Time spent (hrs/mins) per week Volunteer/Charity work 0.99 (3.48) 0.9 1.1
Employment Status
 Employed - works 35 hours a week (Base Category) 42.46 40.82 44.34
 Employed - works less than 35 hours a week 20.78 20.33 21.36
 Unemployed, retired, home duties, students & others 36.76 34.99 38.20
 Carer Characteristics 40.82 44.34
 Actively cares for a household member/non-resident due to long-term health condition, elderly (%) 6.93 6.24 7.66
 Time spent in (hrs/mins) per week Caring for disabled/elderly relative (n = 8416) 14.55 (26.85) 11.47 17.52
 Carers’ Age (n = 8416) 51.65 (15.89) 49.91 52.86
Alcohol drinking status
 Never drink/No longer drink (Base category) 18.12 16.17 20.16
 Drink only rarely 22.82 21.92 23.53
 Drink 2/3 days per month 12.61 11.40 13.35
 Drink 1/2 days per week 18.91 18.12 19.52
 Drink 3 or more days per week 27.54 25.13 30.65
Standard drinks per day
 Don’t drink (Base Category) 18.12 16.17 20.16
 1 to 2 standard drinks 42.82 41.92 44.67
 3 to 4 standard drinks 21.24 20.50 22.08
 5 and more standard drinks 17.82 16.96 19.20
How often participate in Physical Activities?
 Not at all (Base Category) 10.52 9.17 11.18
 Less than once a week 15.81 14.65 17.18
 1 to 2 times a week 23.66 22.72 24.41
 3 times a week 16.07 15.59 16.79
 More than 3 times a week 33.94 33.09 35.39
How often get together socially with friends/relatives?
 Every Day 3.91 3.08 4.73
 Several times a week 23.65 21.92 26.37
 About once a week 31.61 30.99 32.60
 1 to 3 times a month 29.89 28.02 32.07
 1 or 2 times every 3 months 5.78 4.64 6.46
 Less often than once every 3 months (Base Category) 5.17 4.30 5.70
Smoking Status
 Never smoked/No longer smoke (Base Category) 81.39 77.65 83.59
 Smoke less often than weekly 1.53 1.36 1.82
 Smoke at least weekly (but not daily) 1.80 1.53 2.26
 Smoke daily 15.28 13.34 18.28
 Number of cigarettes usually smoked each week

14.95

(42.47)

12.9 17.2

Note: The Table 2 presents summary statics of the variables used in the fully-adjusted fixed effects models for the SF36 mental and general health outcomes across 11 waves (wave 5–15) of HILDA data