Table 1.
Individual characteristics: 2012–2019
| Year | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | |
| Sample size | 34,908 | 40,363 | 47,669 | 52,748 | 54,242 | 42,683 | 17,705 | 13,755 |
| Characteristic | ||||||||
| Mean ageb ± SD | 62.9 ± 12.7 | 63.2 ± 12.4 | 63.0 ± 12.6 | 62.9 ± 12.6 | 62.7 ± 12.7 | 62.6 ± 12.6 | 59.7 ± 12.1 | 57.3 ± 10.9 |
| Age groups (%) | ||||||||
| 18–44a | 7.5 | 6.9 | 7.3 | 7.3 | 7.4 | 7.5 | 9.3 | 10.9 |
| 45–64a | 49.6 | 48.9 | 49.3 | 50.4 | 51.2 | 51.8 | 64.1 | 73.4 |
| ≥ 65b | 43.0 | 44.2 | 43.5 | 42.3 | 41.4 | 40.7 | 26.6 | 15.7 |
| Sex (%) | ||||||||
| Malea | 50.3% | 50.4% | 50.6% | 50.7% | 51.3% | 49.8% | 52.9% | 53.1% |
| Femaleb | 49.7% | 49.6% | 49.4% | 49.3% | 48.7% | 50.2% | 47.1% | 46.9% |
| Insurance type (%) | ||||||||
| Comprehensiveb | 21.3% | 20.5% | 18.3% | 17.8% | 17.0% | 18.1% | 7.7% | 6.3% |
| CDHPa | 2.0% | 2.5% | 3.9% | 3.9% | 3.0% | 3.7% | 6.5% | 6.6% |
| HMOb | 23.7% | 22.9% | 24.1% | 24.8% | 23.4% | 13.8% | 14.3% | 7.8% |
| POSb | 13.4% | 14.5% | 13.4% | 14.2% | 15.2% | 19.0% | 5.8% | 1.9% |
| PPOa | 32.5% | 35.7% | 35.1% | 35.1% | 35.6% | 35.0% | 57.0% | 65.2% |
| Othera | 0.5% | 0.7% | 1.2% | 1.8% | 2.0% | 2.3% | 5.3% | 5.6% |
| Unknowna | 6.6% | 3.1% | 4.0% | 2.3% | 3.7% | 8.2% | 3.5% | 6.7% |
| Mean BMIa ± SD | 33.2 ± 7.3 | 33.3 ± 7.3 | 33.2 ± 7.2 | 33.3 ± 7.3 | 33.4 ± 7.3 | 33.6 ± 7.3 | 34.1 ± 7.3 | 34.5 ± 7.4 |
| BMI categories (%) | ||||||||
| Normal weightb | 10.5% | 9.9% | 10.0% | 10.1% | 9.7% | 9.2% | 7.7% | 6.6% |
| Overweightb | 26.3% | 26.5% | 26.3% | 26.1% | 25.8% | 25.2% | 23.3% | 22.1% |
| Obese class Ia | 28.1% | 28.6% | 28.7% | 28.5% | 28.6% | 28.7% | 29.4% | 29.5% |
| Obese class IIa | 18.9% | 18.9% | 18.8% | 18.7% | 19.2% | 19.4% | 20.9% | 21.5% |
| Obese class IIIa | 16.1% | 16.2% | 16.2% | 16.5% | 16.7% | 17.4% | 18.7% | 20.3% |
| Mean HbA1cc ± SD (%) | 7.3 ± 1.6 | 7.3 ± 1.5 | 7.3 ± 1.6 | 7.3 ± 1.5 | 7.3 ± 1.5 | 7.2 ± 1.5 | 7.2 ± 1.5 | 7.3 ± 1.6 |
BMI body mass index, CDHP consumer-directed health plan, HMO health maintenance organization, POS point of service, PPO preferred provider organization, SD standard deviation
aTime trend for year is positive and statistically significant (P < 0.05)
bTime trend for year is negative and statistically significant (P < 0.05)
cTime trend for year is not statistically significant (P ≥ 0.05)