| Literature DB >> 28281273 |
Adeline Delavande1,2, Jinkook Lee3,4, Seetha Menon5.
Abstract
We examine several methodological considerations when eliciting probabilistic expectations in a developing country context using the Longitudinal Ageing Study in India (LASI). We conclude that although, on average, individuals are able to understand the concept of probability, responses are sensitive to framing effects and to own versus hypothetical-person effects. We find that overall, people are pessimistic about their survival probabilities compared with state-specific life tables and that socioeconomic status does influence beliefs about own survival expectations as found in previous literature in other countries. Higher levels of education and income have a positive association with survival expectations, and these associations persist even when conditioning on self-reported health. The results remain robust to several alternative specifications. We then compare the survival measures with objective measures of health. We find that activities of daily life, height, and low hemoglobin levels covary with subjective expectations in expected directions.Entities:
Keywords: Aging; Biomarkers; Survival expectations
Mesh:
Substances:
Year: 2017 PMID: 28281273 PMCID: PMC5371617 DOI: 10.1007/s13524-017-0560-8
Source DB: PubMed Journal: Demography ISSN: 0070-3370
Summary statistics of demographics
| Variable |
| Mean |
|---|---|---|
| Gender | ||
| Male | 391 | 0.50 |
| Female | 391 | 0.50 |
| Age | ||
| 45–54 | 391 | 0.46 |
| 55–64 | 391 | 0.29 |
| 65–74 | 391 | 0.17 |
| 75+ | 391 | 0.08 |
| Caste | ||
| Scheduled caste | 391 | 0.14 |
| Scheduled tribe | 391 | 0.12 |
| Other backward class | 391 | 0.37 |
| Other caste | 391 | 0.37 |
| Education | ||
| No schooling | 391 | 0.46 |
| Primary/middle school | 391 | 0.36 |
| High school or more | 391 | 0.18 |
| Income | ||
| Well below average | 391 | 0.16 |
| Below average | 391 | 0.29 |
| About average | 391 | 0.47 |
| Well off | 391 | 0.08 |
| State | ||
| Punjab | 391 | 0.26 |
| Rajasthan | 391 | 0.24 |
| Kerala | 391 | 0.25 |
| Karnataka | 391 | 0.25 |
| Survival Format | 391 | 0.50 |
| Either Parent Is Dead | 391 | 0.93 |
| Self-reported Health | ||
| Very good | 391 | 0.02 |
| Good | 391 | 0.60 |
| Fair | 391 | 0.31 |
| Poor | 391 | 0.06 |
| Very poor | 391 | 0.02 |
| Objective Measures of Health | ||
| Activity of daily life | 319 | 0.00 |
| Height | 370 | 159.08 |
| High blood pressure | 309 | 0.19 |
| Anemia | 343 | 0.19 |
| Financial Variables | ||
| Savings (INR) | 129 | 35,520.54 |
| Outstanding bank loan | 391 | 0.13 |
| Activities of Daily Living Dimensions | ||
| Difficulty with dressing | 391 | 0.06 |
| Difficulty with walking | 391 | 0.07 |
| Difficulty with bathing or showering | 391 | 0.04 |
| Difficulty eating | 391 | 0.05 |
| Difficulty getting in or out of bed | 391 | 0.08 |
| Difficulty using toilet | 391 | 0.05 |
Notes: Survival format is a binary indicator, where 1 is survival framing of the survival expectations questions, and 0 is the mortality framing of the survival expectations questions. Height is measured in centimeters. Savings is measured in Indian rupees. All other covariates are binary indicators.
Fig. 1Distribution of subjective probability of survival (weighted)
Summary statistics of subjective survival expectations
| Statistics | Own Mortality | Hypothetical-Person Mortality | ||||
|---|---|---|---|---|---|---|
| 1 Years | 5 Years | 10 Years | 1 Years | 5 Years | 10 Years | |
| A. Summary Statistics of Own- Versus Hypothetical-Person Survival | ||||||
| Mean | .65 | .61 | .55 | .63 | .61 | .56 |
|
| .60 | .60 | .50 | .60 | .60 | .50 |
|
| .50 | .40 | .30 | .50 | .40 | .40 |
|
| .90 | .80 | .80 | .90 | .80 | .80 |
|
| .32 | .89 | .73 | |||
|
| 407 | 410 | 405 | 423 | 420 | 420 |
| Response rate | .87 | .88 | .87 | .91 | .90 | .90 |
|
| .10 | .30 | .13 | |||
| B. Summary Statistics of the Difference Between Own Survival and Hypothetical-Person Survival | ||||||
| Percentage with different responses | 53.96 | 55.03 | 55.89 | |||
| Mean | .03 | .01 | –.01 | |||
|
| .10 | .10 | .10 | |||
|
| –.20 | –.20 | –.20 | |||
|
| .20 | .20 | .20 | |||
|
| .91 | .90 | .38 | |||
|
| 2.52 | 2.57 | 2.61 | |||
aUnpaired t test for equality of means between own versus hypothetical survival.
bUnpaired t test for equality of response rates between own versus hypothetical survival.
Summary statistics of mortality format versus survival format
| Statistics | Own Mortality | Hypothetical-Person Mortality | ||||
|---|---|---|---|---|---|---|
| 1 Years | 5 Years | 10 Years | 1 Years | 5 Years | 10 Years | |
| Mortality Format | ||||||
| Mean | .64 | .58 | .50 | .62 | .60 | .51 |
|
| .60 | .50 | .50 | .60 | .50 | .50 |
|
| .40 | .40 | .30 | .40 | .40 | .40 |
|
| .90 | .80 | .70 | .90 | .80 | .70 |
|
| 205 | 203 | 203 | 214 | 214 | 213 |
| Response rate | .86 | .85 | .85 | .90 | .90 | .89 |
| Survival Format | ||||||
| Mean | .67 | .65 | .61 | .65 | .62 | .61 |
|
| .70 | .70 | .60 | .60 | .60 | .60 |
|
| .50 | .50 | .50 | .50 | .50 | .50 |
|
| .10 | .90 | .80 | .90 | .80 | .80 |
|
| 202 | 207 | 202 | 209 | 206 | 207 |
| Response rate | .89 | .91 | .89 | .92 | .90 | .91 |
|
| .21 | .01 | .00 | .35 | .34 | .00 |
|
| .84 | .79 | .95 | .74 | .60 | .69 |
aUnpaired t test for equality of means between mortality and survival format of the questionnaire.
bUnpaired t test for equality of response rates between mortality and survival format of the questionnaire.
Mean subjective probability of survival (weighted)
| Own Survival | Hypothetical-Person Survival | |||||
|---|---|---|---|---|---|---|
| 1-Year Survival | 5-Year Survival | 10-Year Survival | 1-Year Survival | 5-Year Survival | 10-Year Survival | |
| All | .65 | .61 | .55 | .63 | .61 | .56 |
| Men | .65 | .62 | .56 | .63 | .62 | .58 |
| Women | .65 | .61 | .55 | .64 | .60 | .55 |
| Age | ||||||
| 45–54 | .65 | .63 | .57 | .63 | .63 | .58 |
| 55–64 | .69 | .64 | .58 | .67 | .62 | .56 |
| 65–74 | .64 | .59 | .48 | .60 | .56 | .53 |
| 75+ | .60 | .51 | .48 | .55 | .57 | .50 |
| Caste | ||||||
| Scheduled caste | .60 | .59 | .53 | .60 | .59 | .51 |
| Scheduled tribe | .59 | .59 | .56 | .61 | .59 | .59 |
| Other backward class | .66 | .61 | .55 | .62 | .62 | .58 |
| Other caste | .68 | .63 | .56 | .66 | .62 | .55 |
| Education | ||||||
| No schooling | .60 | .58 | .54 | .58 | .58 | .55 |
| Primary/middle schooling | .68 | .62 | .53 | .67 | .64 | .54 |
| High school or more | .73 | .70 | .63 | .69 | .65 | .61 |
| Income | ||||||
| Well below average | .57 | .60 | .59 | .60 | .59 | .58 |
| Below average | .69 | .63 | .56 | .63 | .63 | .56 |
| About average | .67 | .61 | .53 | .65 | .61 | .55 |
| Well off | .56 | .57 | .54 | .62 | .59 | .55 |
| State | ||||||
| Punjab | .63 | .58 | .52 | .60 | .57 | .48 |
| Rajasthan | .67 | .65 | .61 | .65 | .63 | .64 |
| Kerala | .80 | .71 | .58 | .76 | .67 | .57 |
| Karnataka | .51 | .52 | .51 | .52 | .57 | .55 |
|
| 407 | 410 | 405 | 423 | 420 | 420 |
Notes: Means are weighted by the pooled individual weights to provide survey design–adjusted standard errors. All variables are coded as binary indicators.
State life table summary statistics
| Statistics | Overall | Punjab | Rajasthan | Kerala | Karnataka | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 5-Year Survival | 10-Year Survival | 5-Year Survival | 10-Year Survival | 5-Year Survival | 10-Year Survival | 5-Year Survival | 10-Year Survival | 5- Year Survival | 10-Year Survival | |
| A. State Life Table Estimates | ||||||||||
| Mean | .84 | .68 | .82 | .66 | .82 | .66 | .83 | .66 | .88 | .73 |
|
| .91 | .78 | .89 | .74 | .92 | .81 | .88 | .73 | .92 | .80 |
|
| .79 | .56 | .79 | .55 | .73 | .47 | .79 | .56 | .87 | .69 |
|
| .94 | .86 | .93 | .84 | .95 | .87 | .94 | .85 | .95 | .87 |
|
| 400 | 400 | 103 | 103 | 95 | 95 | 98 | 98 | 104 | 104 |
| B. Subjective Survival Expectations | ||||||||||
| Mean | .61 | .56 | .58 | .52 | .65 | .62 | .71 | .59 | .52 | .51 |
|
| .60 | .50 | .60 | .50 | .60 | .60 | .80 | .55 | .50 | .50 |
|
| .40 | .30 | .40 | .30 | .40 | .40 | .50 | .40 | .40 | .35 |
|
| .80 | .80 | .80 | .70 | .90 | .80 | 1.00 | .80 | .60 | .60 |
|
| 400 | 400 | 103 | 103 | 95 | 95 | 98 | 98 | 104 | 104 |
|
| .00 | .00 | .00 | .00 | .00 | .34 | .00 | .05 | .00 | .00 |
aUnpaired t test for equality of means between state life table estimates and subjective survival expectations.
Basic regressions of sociodemographic characteristics and self-reported health on survival
| Basic Regression | Basic Regression + Self-rated Health | |||||
|---|---|---|---|---|---|---|
| 1-Year Survival | 5-Year Survival | 10-Year Survival | 1-Year Survival | 5-Year Survival | 10-Year Survival | |
| Male | ||||||
| Female | 0.020 | 0.011 | –0.005 | 0.030 | 0.022 | 0.001 |
| (0.030) | (0.024) | (0.027) | (0.032) | (0.025) | (0.027) | |
| 45–54 Years | ||||||
| 55–64 Years | 0.054† | 0.024 | 0.011 | 0.070* | 0.041 | 0.022 |
| (0.032) | (0.031) | (0.038) | (0.030) | (0.029) | (0.036) | |
| 65–74 Years | –0.008 | –0.045 | –0.091† | 0.037 | 0.001 | –0.061 |
| (0.039) | (0.046) | (0.046) | (0.038) | (0.040) | (0.042) | |
| 75+ Years | –0.035 | –0.122** | –0.095† | 0.018 | –0.064 | –0.057 |
| (0.051) | (0.043) | (0.055) | (0.045) | (0.047) | (0.061) | |
| No Schooling | ||||||
| Primary/Middle School | 0.043 | 0.046 | –0.004 | 0.046 | 0.053 | 0.000 |
| (0.041) | (0.037) | (0.041) | (0.040) | (0.036) | (0.040) | |
| High School or More | 0.086 | 0.103† | 0.075 | 0.078 | 0.095† | 0.07 |
| (0.053) | (0.053) | (0.055) | (0.051) | (0.050) | (0.053) | |
| Other Caste | ||||||
| Schedule Caste | –0.007 | 0.028 | 0.008 | 0.002 | 0.032 | 0.011 |
| (0.048) | (0.042) | (0.050) | (0.048) | (0.044) | (0.051) | |
| Schedule Tribe | –0.034 | –0.008 | –0.031 | –0.015 | 0.013 | –0.017 |
| (0.070) | (0.054) | (0.055) | (0.069) | (0.056) | (0.058) | |
| Other Backward Caste | 0.017 | 0.008 | –0.004 | 0.029 | 0.013 | 0.001 |
| (0.035) | (0.033) | (0.035) | (0.036) | (0.033) | (0.036) | |
| Mortality Format | ||||||
| Survival Format | 0.028 | 0.057† | 0.125** | 0.019 | 0.047 | 0.119** |
| (0.031) | (0.032) | (0.034) | (0.031) | (0.032) | (0.035) | |
| Both Parents Alive | ||||||
| One or Both Parents Are Dead | –0.136** | –0.102† | –0.048 | –0.148** | –0.115* | –0.055 |
| (0.049) | (0.054) | (0.046) | (0.050) | (0.047) | (0.042) | |
| Income, Well Below Average | ||||||
| Income, Below Average | 0.090* | 0.028 | –0.033 | 0.102* | 0.035 | –0.026 |
| (0.044) | (0.040) | (0.045) | (0.043) | (0.040) | (0.045) | |
| Income, About Average | 0.049 | –0.006 | –0.073† | 0.071† | 0.012 | –0.061 |
| (0.041) | (0.041) | (0.041) | (0.038) | (0.043) | (0.043) | |
| Income, Well Off | –0.019 | 0.002 | –0.028 | –0.011 | 0.001 | –0.027 |
| (0.065) | (0.057) | (0.046) | (0.066) | (0.060) | (0.048) | |
| Punjab | ||||||
| Rajasthan | 0.043 | 0.085 | 0.119* | 0.046 | 0.089 | 0.121* |
| (0.068) | (0.060) | (0.051) | (0.068) | (0.060) | (0.051) | |
| Kerala | 0.124* | 0.097* | 0.068 | 0.191** | 0.152** | 0.105* |
| (0.050) | (0.047) | (0.045) | (0.052) | (0.050) | (0.050) | |
| Karnataka | –0.124** | –0.080* | –0.032 | –0.119** | –0.073* | –0.029 |
| (0.035) | (0.037) | (0.043) | (0.036) | (0.036) | (0.043) | |
| Self-reported Health, Very Good | ||||||
| Self-reported Health, Good | –0.061 | –0.116 | –0.081 | |||
| (0.105) | (0.108) | (0.085) | ||||
| Self-reported Health, Fair | –0.149 | –0.167 | –0.119 | |||
| (0.107) | (0.114) | (0.096) | ||||
| Self-reported Health, Poor | –0.240† | –0.368** | –0.214† | |||
| (0.126) | (0.129) | (0.110) | ||||
| Self-reported Health, Very Poor | –0.355* | –0.309* | –0.282† | |||
| (0.137) | (0.137) | (0.143) | ||||
|
| 391 | 391 | 391 | 391 | 391 | 391 |
Notes: Regressions are weighted by the pooled individual weights to provide survey design–adjusted standard errors. Robust standard errors, clustered at state level, are shown in parentheses. 1-year survival, 5-year survival, and 10-year survival indicate the respondent’s subjective survival expectations reported for the three time frames. All covariates are coded as binary indicators.
† p < .10; *p < .05, **p < .01
Association between survival expectations and objective measures of health
| 1-Year Survival | 5-Year Survival | 10-Year Survival | |
|---|---|---|---|
| Activities of Daily Life | 0.030* | 0.027† | 0.008 |
| (0.014) | (0.016) | (0.021) | |
|
| 319 | 318 | 313 |
| High Blood Pressure | –0.041 | –0.001 | –0.035 |
| (0.038) | (0.034) | (0.038) | |
|
| 309 | 307 | 304 |
| Height | 0.005* | 0.005* | 0.005* |
| (0.002) | (0.002) | (0.002) | |
|
| 320 | 319 | 314 |
Notes: Each cell in the above table reports the results of separate estimations with all the control variables used in columns 1–3, Table 6. Regressions are weighted by the pooled individual weights to provide survey design–adjusted standard errors. Robust standard errors, clustered at the state level, are shown in parenthesis. ADL is the first component of a principle component analysis with a mean of 0 and a standard deviation of 1, using the components shown in Table 1. High blood pressure is a binary indicator, with 1 indicating the incidence of high blood pressure. Height is measured in centimeters.
† p < .10; *p < .05
Association with low hemoglobin concentrations
| Female | Male | |||||
|---|---|---|---|---|---|---|
| 1-Year Survival | 5-Year Survival | 10-Year Survival | 1-Year Survival | 5-Year Survival | 10-Year Survival | |
| Low Hemoglobin | 0.058 | 0.051 | 0.072 | –0.138* | –0.167* | –0.024 |
| (0.036) | (0.030) | (0.050) | (0.062) | (0.068) | (0.074) | |
|
| 152 | 148 | 145 | 141 | 144 | 142 |
Notes: Each cell reports the results of separate estimations with all the control variables used in columns 1–3, Table 6. Low hemoglobin is a binary indicator, with 1 indicating hemoglobin levels below 12.0 g/dl for women and below 13.0 g/dl for men. Regressions are weighted by the pooled individual weights to provide survey design–adjusted standard errors. Robust standard errors, clustered at the state level, are shown in parentheses.
*p < .05
Survival expectations, savings, and outstanding bank loans
| Loans | Loans | Loans | Savings | Savings | Savings | |
|---|---|---|---|---|---|---|
| 1-Year Survival | 0.116* | –0.39 | ||||
| (0.052) | (0.356) | |||||
| 5-Year Survival | –0.045 | 0.322 | ||||
| (0.054) | (0.361) | |||||
| 10-Year Survival | –0.061 | 0.142 | ||||
| (0.038) | (0.317) | |||||
| Male | ||||||
| Female | –0.021 | –0.02 | –0.021 | 0.339 | 0.354† | 0.351 |
| (0.040) | (0.039) | (0.039) | (0.206) | (0.208) | (0.218) | |
| 45–54 Years | ||||||
| 55–64 Years | –0.05 | –0.044 | –0.045 | 0.607* | 0.591* | 0.582* |
| (0.038) | (0.038) | (0.038) | (0.280) | (0.286) | (0.285) | |
| 65–74 Years | 0.015 | 0.009 | 0.006 | 0.487† | 0.584* | 0.552* |
| (0.047) | (0.047) | (0.047) | (0.256) | (0.262) | (0.256) | |
| 75+ Years | –0.046 | –0.058 | –0.058 | 0.289 | 0.376 | 0.336 |
| (0.058) | (0.057) | (0.058) | (0.567) | (0.542) | (0.546) | |
| No Schooling | ||||||
| Primary/Middle School | 0.071* | 0.079* | 0.077* | 0.241 | 0.224 | 0.236 |
| (0.035) | (0.037) | (0.037) | (0.265) | (0.263) | (0.271) | |
| High School or More | 0.031 | 0.046 | 0.045 | 0.757† | 0.722† | 0.746† |
| (0.058) | (0.061) | (0.060) | (0.393) | (0.373) | (0.390) | |
| Other Caste | ||||||
| Schedule Caste | 0.078 | 0.077 | 0.076 | –1.051* | –0.990† | –0.981† |
| (0.048) | (0.047) | (0.047) | (0.500) | (0.545) | (0.541) | |
| Schedule Tribe | –0.005 | –0.011 | –0.012 | –0.051 | –0.222 | –0.135 |
| (0.048) | (0.048) | (0.048) | (1.400) | (1.351) | (1.336) | |
| Other Backward Caste | 0.033 | 0.034 | 0.033 | –0.175 | –0.18 | –0.161 |
| (0.065) | (0.066) | (0.066) | (0.403) | (0.397) | (0.402) | |
| Income, Well Below Average | ||||||
| Income, Below Average | 0.081† | 0.094* | 0.091* | –1.093** | –1.174** | –1.142** |
| (0.042) | (0.043) | (0.043) | (0.388) | (0.407) | (0.413) | |
| Income, About Average | –0.012 | –0.005 | –0.01 | –0.541† | –0.559† | –0.545† |
| (0.043) | (0.041) | (0.042) | (0.297) | (0.289) | (0.283) | |
| Income, Well Off | –0.028 | –0.029 | –0.031 | –0.688 | –0.713 | –0.706 |
| (0.047) | (0.046) | (0.046) | (0.460) | (0.474) | (0.467) | |
| Punjab | ||||||
| Rajasthan | 0.009 | 0.018 | 0.021 | –0.383 | –0.365 | –0.391 |
| (0.039) | (0.040) | (0.039) | (0.334) | (0.341) | (0.340) | |
| Kerala | 0.342** | 0.360** | 0.360** | –0.071 | –0.149 | –0.135 |
| (0.059) | (0.058) | (0.059) | (0.496) | (0.473) | (0.477) | |
| Karnataka | 0.042 | 0.025 | 0.026 | –1.454** | –1.350** | –1.392** |
| (0.046) | (0.046) | (0.045) | (0.355) | (0.368) | (0.377) | |
|
| 391 | 391 | 391 | 129 | 129 | 129 |
Notes: Regressions are weighted by the pooled individual weights to provide survey design–adjusted standard errors. Robust standard errors, clustered at the state level, are shown in parentheses. 1-year survival, 5-year survival, and 10-year survival indicate the respondent’s subjective survival expectations reported for the three time frames between 0 and 1. Loans are a binary indicator, with 1 denoting the existence of an outstanding loan. Savings are coded in Indian rupees, with a mean of INR35,521 and a standard deviation of INR66,923. All other covariates are coded as binary indicators.
† p < .10; *p < .05, **p < .01